I have what I need. Here are the shapes this could take — all three honor the two decisions you've made; they differ in how much machinery goes in.

Approach A — targeted resolution (recommended)

Three small pieces, no new agent-interface method:

1. claudecode.GetSessionDir / GetSessionBaseDir gain a CLAUDE_CONFIG_DIR step, exactly mirroring codex.resolveCodexHome (codex.go:558) and the userClaudeSettingsPath helper that already lives in claudecode/generate.go:114. Precedence: ENTIRE_TEST_CLAUDE_PROJECT_DIR → CLAUDE_CONFIG_DIR/projects/… → $HOME/.claude/projects/….
2. session.State gains agent_session_dir, written at session start (manual_commit_session.go:694) from entire's own GetSessionDir call — i.e. computed while the correct env is in scope.
3. Adopt validates against the recorded dir when present, falling back to derived candidates for pre-existing states. Cold lookups (searchTranscriptInProjectDirs) try the env-derived base then ~/.claude.

Smallest surface, one new state field, no interface churn. Downside: the "which agent owns this path" logic grows a state-aware variant alongside the existing AgentForTranscriptPath.

Approach B — candidate-list capability on Agent

Add an optional SessionDirCandidates(repoPath) ([]string, error) capability (following the agent/capabilities.go opt-in pattern); registry ownership and fallback search iterate it; Codex folds its existing rolloutRoots in. More uniform and sets up every other agent, but it's a documented interface change: docs/architecture/agent-guide.md and the integration checklist both have to move, and every agent gets test coverage for a problem only Claude Code has today.

Approach C — trust recorded state only, drop derivation

Never recompute; always use transcript_path / the recorded dir. Kills cold lookup (entire attach <id> has no state by definition) and entire import. I'd reject this.

I recommend A. B is the right shape if and when a second agent needs multi-root, and A leaves the door open — SessionDirCandidates can be extracted later from the two call sites without redoing the state field or the env handling.

One deviation from your "explicit flag" answer, which I think you'll agree with: no new flag is needed. CLAUDE_CONFIG_DIR=/home/h/.claude-personal entire attach <id> is the explicit override once step 1 lands, and entire import claude-code --path <dir> already exists (import_cmd.go:113). So the escape hatch becomes an error message that names the roots searched and points at the env var, rather than a new --claude-config-dir surface. Say the word if you'd still rather have a real flag.

Does Approach A look right, and is dropping the new flag acceptable?

Two corrections to my table before the design — I checked the constants and got two wrong:

• Cursor: cursorChatsDirEnv is ENTIRE_TEST_CURSOR_CHATS_DIR — entire's own test override, not a user relocation env.
• Antigravity: ENTIRE_ANTIGRAVITY_CONFIG_DIR / _STATUS_DIR are likewise entire's, not the agent's.

So the agents with a real user-facing relocation env are Claude Code (CLAUDE_CONFIG_DIR, unhonored), Codex (CODEX_HOME), Copilot CLI (COPILOT_HOME), Pi (PI_CODING_AGENT_DIR). Cursor, Antigravity, Factory and external agents have no such env and stay single-root.

Design

Architecture. Introduce storage root — the relocatable directory an agent keeps state under — as an optional capability alongside the ~26 existing ones in agent/capabilities.go:

Binding invariant: GetSessionDir(repoPath) must equal SessionDirUnder(roots[0], repoPath). Writes and hook behavior are unchanged by construction, and it's a testable contract.

Components.

1. agent/capabilities.go — capability + accessor.
2. claudecode — roots $CLAUDE_CONFIG_DIR → ~/.claude; SessionDirUnder = root/projects/Sanitize(repo); GetSessionDir/GetSessionBaseDir rewritten on top (test override still wins). This alone fixes wclaude/pclaude derivation.
3. codex — roots $CODEX_HOME → ~/.codex; SessionDirUnder = root/sessions; existing rolloutRoots (codex.go:267) folds in so archived_sessions is enumerated per root.
4. copilotcli, pi — same conversion from their existing single-root resolvers.
5. Non-relocatable agents implement nothing; every consumer falls back to today's GetSessionDir. No external-agent protocol change.
6. session.State — new agent_session_dir, written at session start (manual_commit_session.go:694 and the Codex repair branch) from entire's own GetSessionDir.
7. AgentForTranscriptPath — match against every root's session dir.
8. validateAdoptSourceTranscript — prefer the recorded dir; fall back to multi-root matching.
9. searchTranscriptInProjectDirs — walk every root's base dir.

Data flow. Session starts under wcodex → hook records agent_session_dir = /home/h/.codex-work/sessions. Later entire session adopt --from … running under pcodex loads the source state, sees the recorded dir, confirms transcript_path sits under it, and passes — independently of the adopting process's CODEX_HOME. Cold lookups with no state try each root in turn.

The honest limitation. For sessions that already exist today (no recorded field), cross-instance adopt still can't work: from wclaude the enumerable roots are .claude-work and ~/.claude, and .claude-personal is simply not discoverable. Those fail with an error naming the roots searched and suggesting CLAUDE_CONFIG_DIR=… entire session adopt …. New sessions work with no config. I'd rather ship that than add $HOME scanning.

Error handling. The cross-check stays fail-closed — a transcript is never accepted just because agent_type claims it. Failures name the roots actually searched and point at the env var.

Testing. Per-agent root-precedence tables with t.Setenv; a cross-agent table asserting the GetSessionDir == SessionDirUnder(roots[0], …) invariant; ownership matching a non-default root but rejecting a foreign agent's; adopt validation with recorded / absent / mismatched dirs; an integration test adopting across two config roots. One thing to verify rather than assume: e2e/agents/claude.go:112 already points spawned Claude at a temp CLAUDE_CONFIG_DIR, so after this change entire resolves there instead of the developer's real ~/.claude — an improvement, but the canary needs a run. Docs land in agent-guide.md, agent-integration-checklist.md, and sessions-and-checkpoints.md.

Out of scope: $HOME scanning for undeclared roots, external-agent multi-root protocol, and relocation for agents with no upstream env.

Does this look right? If so I'll write it up as a spec under docs/superpowers/specs/ and then turn it into an implementation plan.

Spec written to docs/superpowers/specs/2026-09-30-agent-storage-roots-design.md (untracked — that tree is gitignored, so there's no commit).

Two things changed during self-review, both worth knowing before you read it:

• Component 6 originally said the recorded directory was resolved "against" the transcript path, which contradicts the rationale. It's now explicit that the value comes from an independent GetSessionDir call — that independence is the whole reason the later containment check means anything.
• Added component 10. buildAdoptedSessionState clears a long list of target-local bookkeeping, and agent_session_dir must not join it. Adoption deliberately keeps the source's live TranscriptPath; the recorded directory describes that same transcript and has to travel with it. Easy to get wrong by pattern-matching the surrounding resets.

Please review it and tell me if you want changes before I turn it into an implementation plan.

Every symbol resolves consistently. Plan saved to docs/superpowers/plans/2026-09-30-agent-storage-roots.md — 10 tasks, 63 checkbox steps, no placeholders (also untracked; that tree is gitignored).

Task sequence:

Three things worth flagging before you read it:

Self-review changed two things. The spec asked for a table asserting GetSessionDir == SessionDirUnder(roots[0]) across all registered agents; I'd only written per-agent versions, so Task 9 gained that table — it's the guard against a future agent declaring roots whose first entry disagrees with where writes actually land. And Task 10 originally invented integration-harness helpers; it now drives the real runAdopt with the helpers that exist (setupAdoptRepo, session.NewStateStoreWithDir), and deliberately avoids claudeAdoptTranscriptPath because that helper sets ENTIRE_TEST_CLAUDE_PROJECT_DIR, which would pre-empt the resolution under test.

I refined the spec's limitation while planning, in your favour. The recorded directory is written at session start and refreshed at every turn start, where TranscriptPath is already refreshed. Turn-start hooks always run inside the owning instance, so any session still taking turns backfills itself. Only already-dormant sessions stay unadoptable.

Almost every test in this plan is non-parallel, because t.Setenv is unavoidable here. That's explicitly called out per task so nobody "fixes" it by adding t.Parallel() and gets flaky cross-test env bleed.

Two execution options:

1. Subagent-driven (recommended) — fresh subagent per task, I review between tasks.
2. Inline — execute here with batched checkpoints.

Which would you like? (Note the mise run check gate before every commit runs the full CI suite, so either way this is a slow-per-commit plan by the repo's own rule.)

Plan and spec are consistent. Setting up isolation.

Setup complete and Task 1 is running. Where things stand:

Isolation: worktree at .claude/worktrees/agent-storage-roots, branch worktree-agent-storage-roots, based on 66c0dcfc6. Baseline: 12,774 tests, one failure — cmd/entire/cli/api TestClient_Request_RespectsCallerContentType, which passes 5/5 in isolation and lives in a package this plan never touches. Recorded as a flake, proceeding.

The pre-flight scan earned its keep. It caught three real defects in my own plan before a single dispatch:

• Task 5 could not have compiled. Its test imported claudecode from inside package agent — and claudecode imports agent. Import cycle. Rewritten to extend the file's existing sessionDirAgent mock with a roots-declaring variant, which tests the same behaviour change without the cycle. Real-agent coverage still lands via Task 9's cross-agent table and Task 10.
• Task 9's source guard would have failed immediately. I listed 4 files reading the relocation variables; reality has 7. CODEX_HOME is also read by codex/hook_root.go and codex/trust.go, and both e2e/agents/codex.go and e2e/agents/pi.go read one. Scoped the guard to cmd/** (the e2e files set the variable for a spawned agent — the opposite act), and added Step 3b routing the two Codex files through resolveCodexHome, since each re-implements the same fallback.
• Task 1 named a test double that doesn't exist (stubAgent; it's mockAgent, pointer receiver).

All three are ruled and recorded in the ledger with what each costs if I got it wrong.

Also amended before execution: your narrowing decision removed SessionBaseDirUnder and SessionBaseDirCandidates entirely — nothing consumed them once discovery stayed single-rooted. The capability is now exactly the two methods you approved, and the classification-vs-discovery rule is written into the spec, the plan's global constraints, and the agent-guide text so a future integration can't quietly widen it.

All 10 briefs are extracted. I'll keep going through the task loop and report when the work is done or something needs your call.

Task 1 committed as 41ba04f68; review is running. Two notes worth keeping:

• The implementer hit the git stash -u trap (shared stash stack across your worktrees). No damage — stack is empty, tree clean, only the expected commit — but I've barred it from every later dispatch.
• A second pre-existing flake surfaced: cmd/entire/cli TestDialLatencies, timing-based. The implementer verified it against a clean tree. Deferred with the api one.

Task 2 running — that's the one that actually fixes CLAUDE_CONFIG_DIR derivation for wclaude/pclaude.

Task 2b brief written and Task 2's review is in flight.

Tasks 1 and 2 are in, both reviewed clean. Task 2b — the harness isolation fix — is running.

Worth surfacing since it's your machine: mise run check currently fails for you (and only you) because the integration harness inherits your shell's CLAUDE_CONFIG_DIR. The CODEX_HOME / COPILOT_HOME / PI_CODING_AGENT_DIR half of that leak is already on main today — your wcodex/pcodex setup has been feeding real transcript trees into integration tests this whole time. 2b closes all four.

The 2b implementer was right and I was wrong — my brief demanded two mutually exclusive things. Resumed with the ruling:

CLAUDE_CONFIG_DIR gets pinned to the empty string rather than a sandbox path. Task 2 made blank equivalent to unset, so that neutralizes your ambient value while leaving HOME as the lever — which is exactly what attach_test.go sets HOME=fakeHome to exercise. The other three get real sandbox directories, since nothing depends on their fallback.

Three commits in (41ba04f68, 2cc922321, d9cf5bece), 2b under review. Tasks 3–10 to go: Codex/Copilot/Pi roots, multi-root ownership, the recorded session dir, and the adopt fix itself.

Task 3 (Codex) running — the one that fixes wcodex/pcodex.

Four commits in; Task 3's review is running. The implementer caught a genuine defect in my brief — my rolloutRoots() dropped ENTIRE_TEST_CODEX_SESSION_DIR support and broke a Codex subagent test. They verified it with a temporary worktree rather than git stash, which is what I asked for.

Task 4 running, forewarned about the trap Task 3 hit — my briefs have twice rewritten a helper in terms of StorageRoots() and silently dropped ENTIRE_TEST_* override support. Pi has the same shape.

Five commits in. All four agents with a relocation variable now declare storage roots, and each variable resolves to exactly one file — so Task 9's guard ledger is verified correct before it's written. Task 4's review is running; Task 5 (multi-root ownership) is next.

Task 5 running — the first task that actually uses the declared roots, and the one guarded hardest against widening beyond classification.

Six commits in, Task 5 under review. Next up is Task 6 — recording agent_session_dir in session state, which is the half that actually makes cross-instance adopt work.

Task 6 running — the pivotal one. Everything before it corrected derivation; this is the half that records where a session actually lives, so a wclaude process can reason about a pclaude session at all.

Resumed — its edits were intact in the working tree, just uncommitted and unverified.

Seven commits in. Task 6 — the pivotal one — is committed and under review; I verified the independence property myself rather than trusting the report, since that was the single way this plan could have quietly become worthless. Task 7 next: the adopt fix itself.

Task 7 running — the one that actually kills the unexpected transcript path … is not owned by a registered agent error you hit.

Task 8's premise holds — searchTranscriptInProjectDirs calls GetSessionBaseDir(), which Task 2 already rewired to roots[0]. So the cold-lookup walk follows CLAUDE_CONFIG_DIR today, and Task 8's real work is just the error message plus pinning both halves with tests.

Eight commits in, and the reported bug's fix is now committed. Task 7's review is running.

That deviation was worth catching: it put "CLAUDE_CONFIG_DIR" into session_adopt.go, which Task 9's guard would have rejected two tasks later. Ledger updated with a reason that distinguishes naming the variable in an error message from resolving paths with it — and flagged for consolidation at the final review, since each agent already owns that constant.

Task 7b running. I chose to fix that Important finding rather than park it — deferring would have shipped a second registry of agent knowledge that silently goes stale, and left Task 9's guard ledger carrying an entry whose only job was to excuse it.

Nine commits in. Task 7b's implementer caught something neat: my brief's suggested doc comment would itself have contained "CLAUDE_CONFIG_DIR" and tripped my brief's own acceptance check. It reworded the comment instead.

Tasks 8, 9, 10 remain — cold-lookup error message, the source guard plus docs, and the end-to-end cross-root adopt test.

First fix round of the run. Worth noting the specific trap: the test had to compare against explicit literal strings, not each agent's own constant — asserting RelocationEnvVar() == claudeConfigDirEnv compares a constant to itself and would pass even if every agent returned the wrong variable.

Scoped re-review running on the 4KB fix diff.

Ten commits in. Task 8 is the smallest change in the plan — its real value is the negative test that pins cold lookup to a single root, which is the guardrail for the design decision you made earlier.

Task 8 under review. Two tasks left: the source guard plus documentation, and the end-to-end cross-root adopt test that proves your original bug is actually dead through the real command.

Eleven commits in. Task 9 writes the guard that keeps this from being undone — and its ledger is the one thing in the plan I verified empirically after every task rather than trusting.

Task 9 under review — I've asked the reviewer to prove both guards can actually fail, in both directions, rather than just observing that they pass. A guard that can't fail is worse than none.

Twelve commits in; Task 10 is the last. I've asked it to confirm the test actually fails without the fix before trusting the pass — a green test nobody has seen fail proves nothing, and this is the one that's supposed to prove your bug is dead.

All thirteen commits are in and Task 10's review is the last per-task gate. The whole-branch review comes after it.

All twelve tasks are complete — 13 commits, 34 files, +1474/−105, every per-task review clean. The whole-branch review is running on Opus with the ledger's deferred items handed to it for triage.

One fix wave covering all three items: the Codex enumeration bug, the deprecated command form in the guide, and re-framing the design rule itself so the same class of mistake can't slip through again.

I'm parking the reviewer's StorageRoots extraction suggestion — it explicitly graded that acceptable to ship, and refactoring four agent files at the very end trades a real regression risk for a maintainability gain that has no deadline.

Waiting on the fix wave. I'll run the scoped re-review when it lands, then show you the diff.

Fix is clean and well-commented. Holding for the re-review verdict before I present the whole thing.

Done. 14 commits on worktree-agent-storage-roots, clean tree, mise run check green on the final tree.

The fix, in three pieces

1. Agents declare their relocatable roots — new StorageRootProvider capability (StorageRoots() + SessionDirUnder()). Claude Code never honored CLAUDE_CONFIG_DIR for sessions at all; Codex/Copilot/Pi honored theirs only via the running process.

2. Sessions record where they actually live — the mechanism that makes cross-instance work:

3. Adopt trusts the record — your exact error is gone:

Production diff (tests/docs excluded): 17 files, +584/−107. Full diff at .superpowers/sdd/2026-09-30-agent-storage-roots/review-66c0dcfc6..295cc1862.diff; run git diff 66c0dcfc6..HEAD in the worktree for the live version.

Rulings I made on your behalf

• R1 — shipped past a baseline failure (api TestClient_Request_RespectsCallerContentType); flaky, passes 5/5 isolated, untouched package. Wrong → a real bug stays masked.
• R2/R3/R4 — pre-flight found three defects in my own plan: a test double that didn't exist, a Task 5 test that was an import cycle and could never compile, and a guard ledger listing 4 files when reality had 7. Wrong → the registry test proves multi-root against a mock, not the real agent.
• R5 — inserted Task 2b. Your shell's CLAUDE_CONFIG_DIR was leaking into spawned CLIs; CODEX_HOME/COPILOT_HOME/PI_CODING_AGENT_DIR have been leaking on main already. Wrong → pins mask a test wanting the ambient value.
• R6 — CLAUDE_CONFIG_DIR pinned to empty, not a sandbox dir, because attach_test.go uses HOME as its lever. Wrong → a future test needing a sandbox path must set it via ExtraEnv.
• R8 (supersedes R7) — inserted Task 7b to fix an Important finding rather than park it, killing a second registry of agent knowledge. Wrong → touched four already-reviewed agent files late.

Two parked, both graded acceptable-to-ship: the four near-identical StorageRoots bodies (extraction recommended, no deadline), and agent-integration-checklist.md still using the old "classify/discover" wording while the guide and code comment carry the corrected "containment, never enumeration" rule — a one-line alignment I left rather than opening a second fix wave.

Two things worth your attention

The whole-branch review caught a real bug none of the per-task reviews could see: Task 3 widened Codex's rolloutRoots(), which is right for its three containment callers but wrong for scanFallbackRollouts, which enumerates. A large legacy ~/.codex could exhaust the shared 500ms scan budget and discard matches already found in the correct root. It also diagnosed why I missed it — I'd framed the rule around who reads the result, but there Entire is the reader, not the agent. The rule now reads "containment, never enumeration."

And the honest limitation: sessions that predate this still fail cross-instance adopt until they take another turn and backfill agent_session_dir. Confirmed live — this session's state has no such field yet.

I haven't pushed, and I've left the worktree and its reports in place. Your branch hidde/agent-config-dir-session-stores is untouched and now fully superseded.

Yes — local only. I verified it rather than reasoning from intent:

Where it lives. <git-common-dir>/entire-sessions/<session-id>.json, i.e. inside .git/. Git cannot track anything there (git ls-files confirms), so it never reaches a commit, a branch, or a push.

Every production reference is local — five of them, all in session-state handling:

Nothing serializes it into checkpoint.TaskStep, and no API or control-plane payload touches session.State.

The second-order check matters more, since that path contains your home directory and the literal string .claude-personal. Persistent checkpoint metadata — the part that can be pushed to a remote — carries no absolute-path fields at all:

Files is repo-relative. The TranscriptPath on checkpoint.TaskStep is an input used to read the transcript off disk (agent.ReadTranscriptFile), not a field that gets persisted into the metadata blob.

So adding this field didn't widen what leaves your machine. Two caveats worth stating plainly: the transcript contents do get captured into checkpoints (that's the product working as intended, subject to the redaction pipeline), and session.State also already stored worktree_path and transcript_path locally before this change — so .git/ was already holding absolute paths, and agent_session_dir is consistent with that rather than a new category of data.

All four running in parallel — principal and security on Opus, privacy and Go-style on Sonnet.

I've told the Go reviewer to be harsh about comment bloat specifically, and to sort every new comment into keep / cut-to-one-line / delete with replacements. That's the one where I expect to be on the receiving end: I wrote several rationale-heavy blocks that probably belong in commit messages rather than above functions.

First round back. Worth flagging immediately: it drifted outside the branch — SessionEndBudgeter, SkillEvents, TranscriptSanitizer and OutOfBandTokenSource are all pre-existing code I didn't touch, so those cuts aren't mine to make here.

Filtering to what this branch actually added, it kept the two new interface comments and validateAdoptSourceTranscript as earning their length, and wants two cut: SessionDirCandidates (18-line comment on a 16-line function, saying "containment not enumeration" three ways) and fallbackScanRoots. It also independently reached the same conclusion as the whole-branch reviewer on the four duplicated StorageRoots bodies — a shared resolveStorageRoots(envVar, defaultRoot) would cut ~40 lines.

Holding for the other three before I act, so it's one consolidated pass rather than three.

Confirmed: 24 occurrences across 5 test files, including ag.GetSessionDir("/home/h/Projects/entire/cli") — this repo's literal path on your machine. entireio/cli is a real remote, so that would enter shared history along with your username and the .claude-personal profile name. Must-fix.

Holding for the principal and security rounds, then one consolidated fix covering all of it.

Spec Revision 2 is written and F2 is running — the layout predicate, the shared ResolveStorageRoots helper, and the two comment cuts, with negative tests (/etc/passwd under root /, paths outside the agent's layout) that are the security property F4 will depend on.

Five fixes in sequence: F2 capability → F3 record the root → F4 validation → F5 privacy scrub and registry-derived guard. Each gets its own review, same as the original run.

F2's review and F3 are running in parallel on disjoint files. The key thing I asked F3 for is a test that mimics a session started in a subdirectory — transcript under a cwd-derived project dir that differs from the worktree root — and confirmation that it fails against the old behaviour. That's the test whose absence let this ship in the first place.

F2 is in. Waiting on F3's rename to finish, then F4 — the security fix itself — which is the one that actually closes the arbitrary-file-read hole.

F4 is running with its tests written as attacks rather than happy paths — root:"/" plus /etc/passwd, relative and non-clean roots, and a type-confusion case where the state claims Claude Code but the path is a Codex rollout. Each must be rejected. F3's review is running alongside it.

Two of five fixes in. Waiting on F4, then F5 (privacy scrub plus registry-derived guard needles), then a fresh security re-review of the whole corrected branch — since the original security verdict was "do not merge until the HIGH is fixed," that verdict needs re-running against the fix, not just the fix's own review.

F4's review is on Opus, prompted to construct the bypasses itself rather than accept that they're closed — including whether rejecting a non-clean root is right or merely strict, and whether the attack tests would pass against the unfixed code. A rejection test that also rejects before the fix proves nothing, which is the failure mode that let the original bug through.

F5 runs alongside: scrubbing your paths out of the test suite, and making the source guard derive its needles from the registry so a fifth agent can't slip past it.

Holding F6 until F5 lands, since both touch session_adopt_test.go. Then F6 closes the symlink bypass, fixes the trailing-slash regression, and corrects the spec paragraph that overstates the residual risk.

F6 running — symlink resolution, the trailing-slash fix, and correcting the spec paragraph that overstated what's bounded. I've told it to name the residual TOCTOU plainly rather than imply the check is airtight, and not to re-plumb the read path through osroot here; that's a larger change worth its own decision.

Once F6 and its review land, I'll re-run the security and privacy lenses against the corrected branch — the original verdicts were "do not merge until the HIGH is fixed" and "fix the fixtures first", so both need re-running rather than assuming the fixes discharge them.

Three closing reviews running: F6 scoped, plus fresh security and privacy passes against the corrected 19-commit branch. The security one is prompted to attack the current code itself — hard links, /proc, symlinked roots, Windows UNC paths — rather than confirm the fixes exist, and to judge whether my rewritten residual-risk paragraph is now honest or still too generous.

All six fixes are in and individually reviewed. Waiting on the two whole-branch verdicts — security and privacy — which are the ones that were blocking.

Two of three closing verdicts in — F6 clean, privacy mergeable. Waiting on the security re-run, which is the one that was blocking.

Both blocking verdicts are now cleared — security: safe to merge, privacy: mergeable. F7 is the last commit: correcting the two places my documentation overstated the protection, plus the untested filepath.Clean line and a privacy doc note.

Worth saying plainly: the security reviewer cleared the code but caught me writing a security comment that claimed more than the code delivers. That's the kind of error that outlives the fix, because the next person reads the comment and trusts it.

Done. 20 commits on worktree-agent-storage-roots, clean tree, mise run check green, all reviews cleared. Nothing pushed.

Where it ended up

Your wclaude/pclaude and wcodex/pcodex setups now work, via two independent halves:

• Agents declare relocatable roots — Claude Code never honored CLAUDE_CONFIG_DIR for sessions at all; Codex, Copilot and Pi honored theirs only through the running process.
• Sessions record their owning storage root, resolved inside the owning agent's own hook process, so a wclaude process can reason about a pclaude session instead of asking the wrong environment.

What the review round changed

The four lenses you asked for found problems the thirteen per-task reviews structurally couldn't, and the branch grew from 14 to 20 commits as a result:

The mechanism barely worked. Claude names projects/ after the agent's cwd, not the worktree root. I was recording GetSessionDir(worktreeRoot), so for any session started in a subdirectory or sibling worktree the recorded path never contained the transcript — and the same mismatch silently defeated the multi-root classification from Task 5. I confirmed it from a real session dumped earlier in this conversation. Neither of my tests could catch it: one asserted only a path prefix, the other set the field by hand. Fixed by recording the storage root instead.

I introduced a security hole. Relaxing adoption to trust a recorded directory removed a containment guarantee: agent_storage_root: "/" matched every absolute path, the agent-type check was skipped, and the adopted path is later read off disk into checkpoint content that syncs to the remote. Then the fix's own review found a symlink escape still open behind it. Both closed; the second review confirmed the gates hold against /proc, hard links, intermediate symlinks and drive-relative paths.

Your username was heading into public history — 24 /home/h/ literals, including this repo's real path on your machine. My briefs seeded them.

And I wrote a security comment that claimed more than the code delivers — "win a race against the read," when the read happens in a later process with no re-validation, so there's no race at all. Corrected, along with the fact that the layout tests only require a path component, making more pre-existing files reachable than I'd documented.

Rulings I made on your behalf

R1 shipped past a flaky baseline test. R2/R3/R4 fixed three defects my own pre-flight found in my plan — including a Task 5 test that was an import cycle and could never have compiled. R5 inserted the harness-isolation task after discovering your shell leaks config dirs into spawned CLIs (the CODEX_HOME half has been leaking on main all along). R6 pinned CLAUDE_CONFIG_DIR to empty rather than a sandbox, because attach_test.go uses HOME as its lever. R8, superseding R7, fixed an Important finding rather than parking it.

Two things I deliberately parked, both graded acceptable-to-ship: agent-integration-checklist.md still uses the old "classify/discover" wording where the guide and code now say "containment, never enumeration"; and reading the adopted transcript through an os.Root would close the remaining swap-at-leisure window, which is a larger change than this branch should carry.

The worktree, ledger and all fix reports are still in place if you want to read any of it. Your old hidde/agent-config-dir-session-stores branch is untouched and now fully superseded.

Nothing changes in how you invoke anything — same commands, same flags, no new surface. Here's the practical shape.

It's inert until you install the build

Your installed binary is 0.11.3-nightly…4e2e839c2 — the old one. Hooks run whatever entire is on PATH, so none of this is live until you install from this branch. Once you do, sessions start recording as they run.

What happens without you doing anything

On session start and again on every turn start, entire writes the agent's storage root into its state file:

One environment read, no I/O. That file lives inside .git/ and is never tracked or pushed. It's also your debugging handle — if adoption misbehaves, that field is the first thing to look at.

The case this fixes

You're in wclaude (CLAUDE_CONFIG_DIR=/home/h/.claude-work) and want to adopt a session that pclaude started in another worktree:

Before: rejected with "unexpected transcript path … is not owned by a registered agent", because entire re-derived the session directory from your CLAUDE_CONFIG_DIR and the transcript was under .claude-personal.

Now: the source session's state says where it actually lives, entire checks the transcript sits inside that root and matches Claude Code's layout, confirms the agent type, and adopts. Identical for wcodex/pcodex via CODEX_HOME.

Where you still do something manually

Cold lookup by ID stays deliberately single-rooted — that was your call, and it's right: attach reads what it finds, so surfacing a session from a tree your running agent can't open would hand you something unresumable. So from wclaude, reaching a pclaude session by ID means naming it:

You won't have to guess that. The error now names the directory it searched and the variable to set, instead of a bare "not found".

The one gap

A session that was already running when you install has no recorded root. It self-heals on its next turn — the turn-start hook backfills it. Only sessions that are already dormant stay unadoptable cross-instance, and for those the explicit env-var prefix is the workaround.

What else quietly got better

entire session attach and entire resume now resolve under your actual config dir rather than ~/.claude, which they never did before — that was broken for you independently of adopt. And integration tests no longer inherit your shell's CLAUDE_CONFIG_DIR/CODEX_HOME, so mise run check stops reading your real transcript trees.

Yes — and checking the premise first changed my view of it.

entire session attach never spawns the agent. The only subprocess in attach.go is a git commit --amend; attach reads the transcript and records linkage. So the argument we used to keep cold lookup single-rooted — "you'd get a session your own agent can't open" — is really an argument about entire resume, which does launch the agent. I over-applied it to attach.

That reopens the door. Here's the mechanism I'd build.

Self-populating root registry

Entire already resolves the agent's storage root on every session start and turn start. Have that same code path upsert it into a small per-user file under userdirs.ConfigRoot:

Cold lookup then searches active root → default → other known roots for that agent.

Why this rather than the alternatives:

• It learns from what you actually do. No config to write, no flag to remember. After you've run one session under each profile, it knows both — which for you is already true today.
• It only ever contains roots entire itself resolved from a real agent's environment. That's the crucial difference from scanning $HOME: not a guess, not arbitrary input, and it never picks up a tree entire has never seen. Scanning was the option you rejected earlier, correctly.
• It's per-user, not repo-controlled, so it sits in userdirs and doesn't touch the repo-settings trust boundary.

Keeping it honest rather than silent

The one real hazard survives: attaching a session found in another tree means entire resume on it later will fail. Since attach is user-attended, that's a message, not a reason to refuse:

Magical when it works, and it tells you the one thing you'd otherwise discover later as a confusing failure.

What I'd keep single-rooted

GetSessionDir for writes, resume, and restore. Those genuinely must match the running agent — a write landing in a tree your agent never reads is silently useless, and that reasoning does hold there.

Cost and caveats

Roughly one focused task: the registry file (write path in the two hook sites, read path in searchTranscriptInProjectDirs), plus concurrency-safe upsert and lazily skipping roots that no longer exist. It adds per-user state, which is new — small, but it's a thing that can go stale, and it's empty on a fresh machine until the first session under each profile.

Want me to build it on this branch, or land it as a follow-up after you've merged what's there? I'd lean follow-up: the current branch is reviewed, clean and fixes the reported bug, and this is a distinct feature that deserves its own review rather than riding along at the end of a pass that already grew twice.

Memory write is blocked by your permission settings, so the spec is the record. One caveat worth flagging: docs/superpowers/ is gitignored, so that design exists only on disk in this worktree — if you want it to survive, it needs to move somewhere tracked (a Linear issue, or docs/architecture/).

Where things stand

Branch: worktree-agent-storage-roots, 20 commits off 66c0dcfc6, clean tree, mise run check green, nothing pushed. Security and privacy both cleared on the corrected branch.

Not merged, not pushed — both remain your call.

Left in place: the worktree, the ledger at .superpowers/sdd/2026-09-30-agent-storage-roots/progress.md, and every implementer and review report. The skill I was following says to delete that workspace once the final review is clean; I've kept it because the review rounds turned up enough that you may want to read the reasoning yourself.

Your old branch hidde/agent-config-dir-session-stores is untouched and fully superseded.

The follow-up, recorded

entire session attach <id> finding sessions across instances without the env-var prefix, via a self-populating per-user root registry — with the premise correction that makes it defensible: attach spawns no agent, so the single-root rule I applied to it actually belongs only to resume.

That correction is the part worth carrying forward even if the feature never gets built. It's the second time on this branch that a rule stated in terms of who reads the result turned out to be the wrong framing — the first was the Codex enumeration bug, where the reader was Entire rather than the agent. The durable version is the one the whole-branch reviewer gave: multi-root for containment tests over a path you already hold; single-root for anything that enumerates a directory.

The implementation work is finished — 20 commits, clean tree, all reviews cleared, nothing pushed. There's no in-flight task to resume.

Four things are genuinely open, and all of them are decisions rather than work:

1. Merge and push. Yours by default, and I won't do either without you asking. The branch is worktree-agent-storage-roots.

2. The follow-up design will evaporate. It's in docs/superpowers/, which is gitignored, so it exists only on disk in this worktree. If you want it to survive, it should become a Linear issue or a tracked doc. I can draft either.

3. Two parked minors. agent-integration-checklist.md still says "the extra roots classify, they never discover" while the guide and code now say "containment, never enumeration" — a one-line fix, and leaving the two inconsistent is exactly how the framing error propagates. Separately, reading the adopted transcript through an os.Root would close the remaining swap-at-leisure window; that one is a real change deserving its own review.

4. The SDD workspace. Ledger and ~20 implementer/review reports are still at .superpowers/sdd/2026-09-30-agent-storage-roots/. I kept them deliberately since the review rounds found enough that you might want the reasoning. Say the word and I'll delete it — git history is the record otherwise.

If you meant "continue" as in build the attach registry after all, I'm happy to — I'd just want that stated explicitly, since you'd agreed to defer it and it's a new feature rather than a continuation.

My suggestion, in order: the checklist one-liner (trivial, and it's the wording that caused a real bug), then capture the follow-up somewhere tracked. The rest can wait until you've decided about merging.

G1 running — the registry itself, no callers yet.

One design choice I made that's worth flagging now rather than after: I'm having it record at session start only, not on every turn. The root can't change mid-session, so per-turn writes would add hook latency for nothing. Trade-off is that if the registry file is deleted, a long-running session won't re-learn its root until the next session starts. Cheap and self-healing, but say if you'd rather it refresh per turn.

Both running. One thing G2 forced that's worth knowing: mapping an arbitrary root to that agent's base directory needs SessionBaseDirUnder, the method we deleted earlier in the branch when nothing consumed it. It now has a consumer, so it comes back — YAGNI cutting the other way. GetSessionBaseDir keeps its contract as the active root's base dir, so the cross-agent invariant test still holds.

The regression guard I care about most: with no recorded roots, behaviour must be byte-identical to today. That's every existing user who doesn't run multiple profiles.

Queued for a cleanup pass once G2 lands — can't run two implementers at once without conflict risk. Waiting on G2.

Both running. G2's review is on Opus with one instruction I care about: verify the attach-does-not-resume premise independently. That claim is the entire justification for reversing a narrowing decision made earlier in this same branch — if it's wrong, the widening is unsound and has to come back out.

The other thing G2 surfaced is worth remembering independently of this feature: adding a method to StorageRootProvider silently broke two test doubles' structural satisfaction of the interface. No compile error — they just quietly stopped being providers, which would have disabled whatever they were testing. Go's implicit interfaces make that failure mode invisible, and the repo has no var _ Interface = (*T)(nil) assertions anywhere to catch it.

G4 running. Worth being blunt about what happened there: the "honest notice" I was pleased with in the design was built on a wrong model of what attach does. I assumed it recorded linkage and left the transcript where it lay, so resume would need the original tree. It doesn't — it captures the redacted transcript into the checkpoint, so resume restores from there into whatever root is active. The notice was telling users to do something unnecessary, using a command that doesn't accept a session ID.

The implementer wrote exactly what I specified, and the test pinned the defect rather than catching it. That's twice now on this feature that my reasoning about behaviour was the failure, not the code — the first being the same premise applied to cold lookup.

G4 also adds compile-time interface assertions, which is the structural fix for the silent-breakage hazard rather than just repairing the two doubles that happened to break.

Scoped re-review running across both fix commits, verdicting all seven findings.

One detail I asked it to guard specifically: making the invariant test fail instead of skip when an expected provider isn't one is only correct if Cursor, Antigravity and Factory AI Droid still skip properly — they genuinely aren't providers, so a test that now fails for them would be a regression rather than a tightening.

Done. 24 commits total, clean tree, mise run check green, nothing pushed.

What entire session attach <id> does now

From wclaude, attaching a session that pclaude started:

No env-var prefix. It searches the active root first, then any root Entire has previously recorded for that agent, learned automatically at session start — never a $HOME scan, never config you write. With no recorded roots the behaviour is byte-identical to before, which the regression test pins.

Two things the reviews caught that were mine, not the implementers'

The notice I designed was wrong twice over. It printed CLAUDE_CONFIG_DIR=<root> entire session resume <id>. But entire resume takes a branch, not a session ID — the command couldn't run. And the prefix was pointless anyway: attach writes the redacted transcript into the checkpoint, and resume restores from the checkpoint into whatever root is active. I'd modelled attach as recording linkage and leaving the transcript where it lay. It doesn't. The whole note was removed; the surviving line states only where it was found.

My justification for the widening was false as written. I told the reviewer attach's only subprocess is git commit --amend. OpenCode's FetchTranscript runs opencode export from inside attach's transcript resolution. The conclusion holds — read-only, runs before the widened search, OpenCode isn't a StorageRootProvider — but that reasoning was in the docs where someone would rely on it.

Also worth keeping: adding a method to StorageRootProvider silently unhooked two test doubles with no compile error. There are now var _ StorageRootProvider = (*T)(nil) assertions on all four agents and both doubles, and the invariant test hard-fails instead of skipping. They compiled clean on the first try, so nothing else was already broken.

Open, all yours

Merge and push. The spec still lives in gitignored docs/superpowers/ — its follow-up section now reads as implemented, but it won't survive unless moved somewhere tracked. And the two earlier parked items stand: the checklist wording, and reading the adopted transcript through an os.Root to close the remaining swap-at-leisure window.

That's the hinge, and it holds. Here's what actually happens.

In a plain terminal, it works — and this is the case it helps most

Your shell doesn't export CLAUDE_CONFIG_DIR; only the wclaude/pclaude wrappers do. So:

1. StorageRoots() returns just [~/.claude] — the default, which for you is a tree you never use.
2. The active search walks ~/.claude/projects. It's missing or empty, and transcript.go:150-151 swallows the walk error for a non-existent base dir, so that's a clean miss rather than an abort. That swallow is load-bearing here — if it errored, the search would stop before reaching anything useful.
3. It then iterates the recorded roots, skips ~/.claude (the active one), and searches .claude-work and .claude-personal.
4. Hit → Attached session 019ed5fe from /home/h/.claude-personal.

So the plain-terminal case is a stronger motivation than the cross-instance one I pitched this on. Running entire outside any agent is exactly when the environment tells it nothing, and before this change that meant searching a directory you've never written to.

The precondition

The registry is populated by hooks at session start, so:

• Before you install the new binary: empty. Attach in a plain terminal still finds nothing — same as today.
• After: populated once a session has run under each profile. For you that's one wclaude session and one pclaude session, then it's permanent.

It also means a fresh machine, or a profile you haven't used since installing, won't be found until it's been used once. The explicit CLAUDE_CONFIG_DIR=… entire session attach <id> still works as the escape hatch and is unaffected — it just becomes the rare path rather than the required one.

One thing I'd check before trusting it

I haven't exercised this end-to-end with a real populated registry — the tests construct the registry directly rather than letting hooks fill it. The chain from "hook writes at session start" through "plain terminal reads it" is verified per-link but not as a whole. If you want, the cheap confirmation after installing is: run one session under each wrapper, then cat ~/.config/entire/<registry file> and check both roots are there before relying on attach finding them.

All four running in parallel against the full 24-commit diff, each with a grounding gate: no finding survives without a concrete failure — specific inputs, specific wrong outcome. Style preferences and speculative hardening get dropped.

The one I'm most interested in is the third lens, because it's the one nobody has run yet. It asks whether this should exist in this shape at all — specifically whether a far smaller change would have fixed your reported bug, given transcript_path was already in session state, and whether the mid-branch reversal on cold lookup means the rule was wrong from the start rather than correctly excepted.

I've also told the Go reviewer to stay strictly inside the diff — the last one spent most of its output critiquing pre-existing code this branch never touched.

Go lens back. Two concrete cuts, both fair:

The adoptOwnerFromRecordedRoot doc comment is an essay — ~80 lines, including two narrative attack walkthroughs that retell what the regression tests right below already demonstrate. So the root:"/" attack is explained three times: twice in the comment, once in the tests. It wants those two paragraphs cut to one line, keeping the bullet contract and the TOCTOU limitation (which the security review added deliberately and appears nowhere else). That's the right call — I wrote those paragraphs defensively after the security findings, and overcorrected.

The single-rootedness rationale appears verbatim three times — on the interface method and again on both GetSessionBaseDir implementations. Keep it on the interface where the contract lives, one-line the implementations.

Naming, contracts and idiom came back clean: the 4-method grouping is defensible since all four are always implemented and used together, splitting RelocationEnvVar out was right because it keeps the "pure arithmetic, no I/O" contract clean, and the compile-time assertions are justified by a documented real incident. One minor: resolveAgentStorageRoot (strategy) and agent.ResolveStorageRoots are easy to confuse on a grep.

Holding for the other three before I act, so it's one consolidated pass.

The problem-validation lens is the sharpest of the four. Verdict: right solution, overscoped — and the reported bug does work, traced end to end.

Two findings land hard:

The registry has one consumer and doesn't help the command that actually failed. KnownStorageRoots is read only by attach's cold lookup. Adoption's fallback never consults it. So a pre-upgrade session sitting in ~/.claude-work, adopted from a pclaude process, still fails with "re-run with CLAUDE_CONFIG_DIR set" — even though ~/.claude-work is right there in the registry file. Entire has the answer and declines to use it. That also means the "sessions predating this change can't be adopted" limitation I documented as unavoidable is largely dissolvable.

The Codex rolloutRoots widening changes what lands in checkpoints. It gates readRegularRolloutContext and openScopedRollout, not just classification — so a rollout reference pointing into ~/.codex is now read and its content enters a .codex-work checkpoint. Nothing in your reported problem required that.

It also caught that my governing rule was mis-stated from the start: the real axis isn't containment-vs-enumeration, it's does a launch or a write follow? That's the third correction to this framing and the first one that actually predicts the exceptions. And it flagged that claudecode/pi GetSessionBaseDir still carry the old doctrine in comments while their sole caller now deliberately widens — the next maintainer reads the opposite of what the code does.

Two lenses still out. Holding.

Confirmed, and it's my regression. This is the most important finding of the entire session.

main had the guard at registry.go:119:

My Task 5 refactor dropped it:

And pathHasDirPrefix(path, "") appends a separator to the empty string, so it reduces to strings.HasPrefix(path, "/") — true for every absolute path. external.getSessionDir returns resp.SessionDir, nil, so a plugin emitting {"session_dir":""} or omitting the field yields ("", nil) with no error.

Consequence: that plugin claims every transcript. List() is alphabetical, so an early-named one wins. Then shouldSkipForwardedHook sees owner.Name() != ag.Name() for the real agent and skips every hook — no checkpoints written at all, silently. Plus resolveSessionAgentType stamps the wrong agent type on every session.

What's sobering is the miss profile: Task 5's own review, the whole-branch review, and three separate security passes all looked at this function. Every one of them scrutinised the new multi-root path I added. None checked what the refactor removed from the existing path. Reviews anchored on the change, and the deletion was invisible.

The same lens also found two more Importants worth acting on: the adoption comparison isn't genuinely two-factor (root, transcript path, and the agent used for the layout test all come from the same state file, and the code's own comment concedes the type check is "necessarily a no-op" on that branch), and the turn-start refresh comment's reasoning is false — it depends on process env, not worktree, so a hook firing under the active instance overwrites a root that attach just recorded, breaking the adopt that recording was meant to enable.

Security lens is still out. I'll hold for it and then do one consolidated fix wave rather than two passes over registry.go.

Critical fixed — d267ef654, test confirmed failing pre-fix, plus a defence-in-depth guard inside pathHasDirPrefix.

Now wave two with your decisions. Starting with the security one, since it's the most consequential and everything else edits around it.

Stopping before H1 — this changes the plan materially. Two decisive facts:

Their registry.go keeps the dir == "" guard. They split the error and empty checks but preserved both (and added a debug log for the refused-variable case). So the Critical I found an hour ago was purely my branch's regression, in a file they also modified. Rebasing will conflict in exactly that spot.

They did not touch session_adopt.go, session/state.go, or transcript.go at all — those diffs are empty. So your reported bug is still broken on merged main: AgentForTranscriptPath now resolves GetSessionDir under the adopting process's CLAUDE_CONFIG_DIR (.claude-work), and a pclaude transcript under .claude-personal still doesn't match.

What that means for the branch

Duplicated, should be dropped: per-agent relocation resolution (their agent.ResolveHome vs my ResolveStorageRoots), harness env scrubbing (their RelocationEnvVars() scrub vs my Task 2b), the source guard (home_guard_test.go vs my storage_root_guard_test.go), and relocation-variable naming (RelocationEnvVars() vs my RelocationEnvVarNamer). Theirs is better in two respects: it covers Gemini and Factory, and it refuses relative values via userdirs.RequireAbsoluteOverride — which is precisely the robustness nit the security lens raised against mine.

Still unique and still needed: recording AgentStorageRoot in session state, the two-factor adoption validation, SessionPathUnder layout classification (which fixes the cwd-derived project-dir mismatch their GetSessionDir(repoPath) still has), and the known-roots registry for attach.

Roughly half my 25 commits are now redundant, and the surviving half should be rebuilt on their abstractions rather than mine.

My recommendation

Rebase onto merged main, drop the duplicated half, and rebuild the adoption/state/registry work on agent.ResolveHome. That's real rework, but the result is maybe 600–800 lines instead of 1,900, sits on the shared abstraction, and avoids two competing resolvers in one package.

The alternative — finishing the four fixes I was about to start, then rebasing — means polishing code I'd then delete.

I can't git fetch from here (no credentials), so I'm reading their branch ref, not the post-merge main. Before committing to a rebase I'd want you to run ! git fetch origin main so I'm working against what actually landed.

How do you want to play it?

I have their design now, and it's good — in places better than mine. ResolveHome(envVar, defaultRel) with a deliberate no-trim rule (trimming "/tmp/x " would resolve to a directory the agent never wrote to), ~ expansion for the agents that do it themselves, and relative values refused through userdirs.RequireAbsoluteOverride.

It also simplifies my port. Their ResolveHome returns one home per agent, not a list — so my StorageRoots multi-root concept goes away entirely, and the known-roots registry becomes the single, more precise source of "other roots the user actually has" rather than guessing [env, default].

The plan

New branch off merged main, porting only what survives:

1. AgentStorageRoot in session state, recorded from their resolveClaudeConfigDir()/ResolveHome result at session start.
2. SessionPathUnder layout classification — fixes the cwd-derived project-dir mismatch their GetSessionDir(repoPath) still has, and which breaks adoption for worktree and subdirectory starts.
3. Two-factor adoption validation on the recorded root, with the os.Root-scoped read you asked for.
4. Known-roots registry, wired into both attach's cold lookup and adoption's fallback.

Dropped as redundant: ResolveStorageRoots, RelocationEnvVarNamer, the storage-root guard, the harness scrubbing, and all four per-agent StorageRoots implementations. Their versions cover Gemini and Factory too, which mine never did.

The 25-commit branch stays on disk as reference — nothing is lost.

One thing I need from you

I can't git fetch (no credentials in this sandbox), so my origin/main is stale at exactly my old base. I'm reading their branch ref, not what actually landed on main. Please run:

Then I'll branch from the real merged main. If you'd rather not, say so and I'll base off origin/fix-hardcoded-claude-home instead — it's the merged content, but any commit that landed alongside it would be missed.

P1 running against the new base.

Two things carried forward from the review rounds that would otherwise have been lost in the rebase: the turn-start refresh now has a guard from the outset (only overwrite when the newly-resolved home still contains the transcript) rather than the unguarded version that a principal reviewer caught clobbering records; and the independence requirement between AgentHome and TranscriptPath is stated up front, since deriving one from the other silently turns the whole adoption check into a tautology.

The port is also materially smaller than what it replaces. My old StorageRootProvider carried four methods largely to re-derive what agent.ResolveHome now does centrally — including the probe for config dirs set inside Claude's settings files, which my version couldn't see at all. The new capability is two methods, and SessionHome() just forwards to each agent's existing resolver rather than reimplementing the policy.

P2 is the one that fixes your bug, and it's carrying every lesson the review rounds bought — rather than rediscovering them.

Baked in from the start this time: the clean-compare (so a trailing slash doesn't silently reject a legitimate home), symlink resolution on both sides (resolving only the transcript breaks legitimately symlinked config dirs), the layout test as a real gate rather than a prefix check, the agent-type check honestly labelled tautological on the recorded-home branch instead of pretending it isn't, and the os.Root-confined read you chose — which closes the swap-at-leisure window the validation alone can't, since the read happens in a later process.

Also persisting the resolved path, which the last security pass caught: validation was resolving symlinks and then storing the unresolved form, so every later reader re-followed the link anyway.

Two down, one to go — the registry for attach, layered after main's probe.

Waiting on P2 — the one that actually fixes the adopt failure.

Worth noting one thing P2 surfaced that I'd have got wrong: it tried to confine the read with a bare os.OpenRoot, and the repo's own TestRootBasesAreTrusted anchor-trust guard rejected it on the first mise run check. It routes through SessionStore instead. That's the codebase enforcing a filesystem contract I'd specified loosely in the brief — the guard caught it, not a reviewer.

Waiting on the security review of P2, then P3 (the attach registry) is the last piece.

P2b running. The pattern here is worth naming, because it's now happened twice in the same area: a partial mitigation reads as a complete one. P2 confined the reads it could see from where it was working — the condensation paths — and the finalize path, which is the one whose bytes actually reach the pushed branch, sat one file away. I asked for "confine the read" and didn't ask for an enumeration of every read site, so nobody counted them.

P2b now has to account for every ReadTranscriptFile call — confined, or a stated reason it can't carry an adopted path.

Two of the LOWs are the same shape as things caught earlier in the project: a helper that fails open while its comment claims it refuses to proceed, and a guard satisfied by a file-level grep rather than by the contract actually holding. Both are cases where the code and its description had drifted apart, which has been the recurring failure mode of this whole effort far more than logic errors have.

P2c running, with the scope bounded rather than taken at face value. Two facts should shrink it a long way from "ten implementations": AgentHome is only ever set for the five agents implementing AgentHomeProvider, so the other six can't reach the confined path at all; and bytes-based extraction variants already exist, which may let the caller do one confined read and pass bytes — no interface change.

I've told it that widening the core Agent interface for a property only five agents can have is probably the wrong shape, and to stop and say so if the right mechanism turns out materially bigger than the brief assumes.

Current state: three commits on agent-session-root-recording off merged main, build and vet clean. P3 — the attach registry — is the one remaining piece after this.

Both running — P2c's review and P3, the final piece.

P3 inherits every mistake the abandoned branch made, pre-corrected: no osroot.Shared for the existence probe (the repo documents, with measurements, why that exhausts RLIMIT_NOFILE for every other anchor), the idempotence test asserts on mtime rather than content so it actually proves no write happened, and the "found elsewhere" notice states a fact instead of printing the command that was wrong twice over last time.

The review has the harder job. I've told it explicitly not to accept the implementer's enumeration and to build its own, because both prior confinement rounds missed exactly one site — P2 missed finalize, P2b missed the per-agent readers. The claim under test is that "last" is finally true.

P4 running on the three holes. P5 — making confinement structural rather than opt-in — follows once it lands, since both touch the same call sites.

Where this stands: five commits on agent-session-root-recording off merged main, build clean, nothing pushed. Your original bug is fixed and covered by a test that fails without the fix. The remaining work is all security hardening that the review rounds uncovered.

The honest summary of this session is that the feature was the easy part. What's actually consumed it is that entire session adopt reads a session-state file from a directory the user merely names with --from, and treats every path in it as trustworthy. Three rounds of confinement each closed what they could see, and a fourth enumeration found a path needing no symlink at all — TaskRecords[].DeclaredTranscriptPath, read whole into a pushed checkpoint, on main today.

That one is worth separating in your head from the rest: it isn't mine, and it affects anyone using adopt, not just the multi-profile case. You chose to fix it here, which I agree with, but it's also the thing I'd want someone upstream to know about independently of whether this branch ever merges.

Ledger is current through P4's dispatch, so this survives a context reset. Waiting on P4.

P5 running. Two instructions in it matter more than the rest.

The cross-agent test must fail, not skip. An earlier test in this project used if !ok { continue }, which silently passed over exactly the agents it was supposed to police — that's how the opt-in gap survived a dedicated invariant test.

Every ledger entry must be verified, not copied. It's seeded from P4's enumeration, but a ledger whose stated reasons are false is worse than none: it converts "nobody checked" into "someone checked and signed off", which is harder to revisit.

And it has to prove the guard works by planting a bare read and showing it caught — the same standard the regression tests have been held to. A guard nobody has seen fail is indistinguishable from a guard that can't.

While that runs — this is a natural stopping point, so here's where things actually stand.

Branch: agent-session-root-recording, 7 commits off merged main (ba41caf7b), clean tree, nothing pushed. The abandoned 25-commit branch is still on disk as reference.

Your bug is fixed, with a test that fails without the fix, and verified end to end through the real runAdopt.

Roughly half the original work was thrown away when trail 1308 merged — and that was the right call. Their ResolveHome is better than my ResolveStorageRoots: it covers Gemini and Factory, refuses relative values, and has a probe that reads a config dir set inside Claude's settings files, which my version couldn't see at all.

What actually consumed this session wasn't the feature. It was discovering that entire session adopt treats every path in a --from worktree's session state as trustworthy. Five rounds of security work followed, and the pattern each time was the same: a fix closed the sites it could see, and a fresh enumeration found more. The last round found a path needing no symlink at all.

Two things from that are worth separating from this branch:

The CRITICAL is pre-existing and affects everyone using adopt, not just multi-profile users. TaskRecords[].DeclaredTranscriptPath is read whole into a pushed checkpoint with no validation, on main today. I verified it at ba41caf7b. We're fixing it here, but someone upstream should know independently of whether this branch merges.

The structural fix immediately paid for itself — binding the capabilities revealed that Claude Code's confinement was a hardcoded special case, so four rounds of hardening had been narrower than they looked for the most-used agent.

Once P5's review returns I'd suggest stopping and letting you decide on merge. If more findings come back, they'll be in the same family, and at some point the honest move is to ship the bug fix and track the adopt trust model as its own piece of work rather than chasing it indefinitely inside a feature branch.

P6 running. Three of its findings are the same failure wearing different clothes, and it's worth naming because it's been the through-line of this entire session:

A check that looks like it covers something, and doesn't. The guard's pathspec excluded the packages that keep breaking. The binding test's registry is hand-maintained, so a sixth agent passes silently — the exact "skips what it should police" flaw that test was written to correct. And two ledger entries state reasons that aren't true, which is worse than no entry because it converts nobody checked into someone signed off.

The planted-read proof is the sharpest instance: it was genuinely run, genuinely passed, and tested nothing — because it planted the read inside the scope that was already covered.

One finding is a straightforward regression I'd want fixed regardless of security: confining GetTranscriptPosition made a Pi mid-file parse error return an error where it previously returned a valid count, so hasNewTranscriptWork reports no work — silently skipped checkpointing, on legacy sessions that never needed confinement at all.

After P6 I'd stop and hand this to you. The remaining items are documented, the bug is fixed, and the adopt trust model is a bigger piece of work than a feature branch should absorb.

Ledger current through P6's dispatch. Waiting on it.

Resumed. I've flagged one thing specifically: the modified-file list is confined to cmd/entire/cli/agent/ — no strategy/, no review/. If widening the pathspec to cmd/**/*.go genuinely surfaced nothing new in the packages where all four prior bugs lived, that's a surprising result, not a clean one. It would mean either the needles are too narrow to match what's there, or the widening didn't take effect.

I've asked for that stated explicitly with evidence rather than passed over, and for the planted-read proof to be re-run in strategy/manual_commit_hooks.go specifically — planting it in agent/ is what made the original proof vacuous.