sync local pi changes

.pi/reviews/context-manager-task2-fix-report.md

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+# Context Manager Task 2 Fix Report
+
+## Status
+Completed.
+
+## What changed
+- Updated `.pi/agent/extensions/context-manager/src/ledger.ts` so `mergeCandidates()` only supersedes the current active item when the incoming candidate is at least as new by `timestamp`.
+- Stale same-slot candidates now remain archived instead of reactivating older state when merges arrive out of order.
+- Kept `createId(candidate)` intact and added a small internal uniqueness guard so same-slot same-timestamp candidates receive distinct item IDs in practice.
+- Added regression coverage in `.pi/agent/extensions/context-manager/src/ledger.test.ts` for:
+  - out-of-order same-slot merges, and
+  - same-slot same-timestamp ID collisions.
+
+## Test results
+- `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npx tsx --test src/ledger.test.ts`
+  - Result: 5/5 tests passed.
+- `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npm test`
+  - Result: 10/10 tests passed.
+
+## Files changed
+- `.pi/agent/extensions/context-manager/src/ledger.ts`
+- `.pi/agent/extensions/context-manager/src/ledger.test.ts`
+- `.pi/reviews/context-manager-task2-fix-report.md`
+
+## Self-review findings
+- Scope stayed limited to the two reviewed correctness issues and their regression tests.
+- Public API and overall Task 2 structure were preserved.
+- `createId(candidate)` remains the base ID format from the original Task 2 implementation.
+
+## Any concerns
+- None.

.pi/reviews/context-manager-task2-implementer-report.md

@@ -0,0 +1,38 @@
+# Context Manager Task 2 Implementer Report
+
+## Status
+Completed.
+
+## What you implemented
+- Added `src/ledger.ts` with the branch-aware memory ledger types and helpers:
+  - `createEmptyLedger()`
+  - `mergeCandidates()`
+  - `getActiveItems()`
+- Implemented supersession behavior so a new active item archives the previous active item in the same `kind` + `scope` + `subject` slot.
+- Preserved coexistence between branch-scoped and session-scoped memory items.
+- Added `src/ledger.test.ts` with the required ledger coverage.
+
+## What you tested and results
+1. Ran the ledger test command before the files existed.
+   - Result: failed because `src/ledger.test.ts` did not exist.
+2. Added `src/ledger.test.ts` and ran the ledger test command again before implementing the module.
+   - Result: failed with `ERR_MODULE_NOT_FOUND` because `src/ledger.ts` did not exist.
+3. Ran the ledger test file after implementing the module.
+   - Command: `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npx tsx --test src/ledger.test.ts`
+   - Result: 3/3 tests passed.
+4. Ran the full package test suite.
+   - Command: `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npm test`
+   - Result: 8/8 tests passed.
+
+## Files changed
+- `.pi/agent/extensions/context-manager/src/ledger.ts`
+- `.pi/agent/extensions/context-manager/src/ledger.test.ts`
+- `.pi/reviews/context-manager-task2-implementer-report.md`
+
+## Self-review findings
+- Implementation matches the required API and logic exactly.
+- Test style matches the existing `src/config.test.ts` style.
+- Scope stayed limited to the ledger work only.
+
+## Any concerns
+- The task text referenced `/home/alex/dotfiles/.pi/agent/extensions/context-manager`, but that path does not exist in this worktree. I ran the equivalent commands in the requested worktree path instead.

.pi/reviews/context-manager-task2-minor-fix-report.md

@@ -0,0 +1,30 @@
+# Context Manager Task 2 Minor Fix Report
+
+## Status
+- Completed.
+- Added a deterministic exact-timestamp tie-break for same-slot candidates in `mergeCandidates()`.
+- Added regression coverage for reversed input order.
+
+## Changes
+- Updated `.pi/agent/extensions/context-manager/src/ledger.ts` so same-slot candidates with identical timestamps no longer fall back to caller order.
+- Added a narrow tie-break helper that compares candidate data (`text`, `sourceType`, `sourceEntryId`, then `confidence`) when timestamps match.
+- Kept the public API unchanged and limited the behavior change to exact-timestamp same-slot comparisons.
+- Added a regression test in `.pi/agent/extensions/context-manager/src/ledger.test.ts` that verifies the same candidate stays active regardless of input order.
+
+## Tests
+- `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npx tsx --test src/ledger.test.ts` ✅
+- `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npm test` ✅
+
+## Files Changed
+- `.pi/agent/extensions/context-manager/src/ledger.ts`
+- `.pi/agent/extensions/context-manager/src/ledger.test.ts`
+- `.pi/reviews/context-manager-task2-minor-fix-report.md`
+
+## Self-Review Findings
+- The fix is narrowly scoped to same-slot exact-timestamp winner selection.
+- Existing out-of-order merge coverage and same-timestamp ID-collision coverage still pass.
+- The new regression test fails on the pre-fix code path and passes with the tie-break in place.
+
+## Concerns
+- None blocking.
+- Same-slot collision IDs remain unique, but sequential `:2` / `:3` suffix assignment is still derived from insertion order across separate incremental merges; I left that behavior unchanged to keep this fix narrowly scoped to the requested active-item determinism issue.

.pi/reviews/context-manager-task2-snapshot-fix-report.md

@@ -0,0 +1,35 @@
+# Context Manager Task 2 Snapshot Fix Report
+
+## Status
+Completed.
+
+## Changes
+- Updated `.pi/agent/extensions/context-manager/src/ledger.ts` so affected ledger slots are normalized after merges instead of preserving same-slot insertion order.
+- Added deterministic slot ordering by:
+  - newer `timestamp` first,
+  - existing exact-timestamp tie-break fields (`text`, `sourceType`, `sourceEntryId`, then `confidence`) for same-timestamp candidates.
+- Reassigned same-slot same-timestamp IDs from that canonical order, so `:2` / `:3` suffixes no longer depend on input order.
+- Recomputed slot-level `active`, `freshness`, and `supersedesId` from the canonical slot order so forward vs reversed tie merges produce the same stored snapshot and lineage.
+- Strengthened `.pi/agent/extensions/context-manager/src/ledger.test.ts` to compare the resulting ledger snapshot, not only the active winner text.
+- Updated the existing same-timestamp ID test to assert lineage against the archived tied item rather than insertion position.
+
+## Tests
+- `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npx tsx --test src/ledger.test.ts`
+  - Result: 6/6 tests passed.
+- `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npm test`
+  - Result: 11/11 tests passed.
+
+## Files Changed
+- `.pi/agent/extensions/context-manager/src/ledger.ts`
+- `.pi/agent/extensions/context-manager/src/ledger.test.ts`
+- `.pi/reviews/context-manager-task2-snapshot-fix-report.md`
+
+## Self-Review Findings
+- Scope stayed inside the requested ledger merge path and regression tests.
+- Public function signatures and exported types remain unchanged.
+- The deterministic normalization preserves the earlier out-of-order timestamp protection while also making stored tie snapshots replay-stable.
+- Regression coverage now locks the exact stored state for the tied slot, including IDs and `supersedesId` values.
+
+## Concerns
+- None blocking.
+- I attempted to invoke the requested code-review subagent workflow, but no `code-reviewer` agent is available in this harness, so this pass relied on direct verification plus self-review.

.pi/reviews/context-manager-task3-durable-fix-report.md

@@ -0,0 +1,44 @@
+# Context Manager Task 3 Durable Constraint Fix Report
+
+## Status
+- Done
+- Fixed the remaining durable-constraint extraction gaps in the context-manager extractor.
+- Kept the change narrowly scoped and preserved the earlier source-stable subject behavior plus the narrowed ambiguous-scope behavior.
+
+## Changes
+1. **Allowed explicit durable file-specific constraints to remain session-scoped in `.pi/agent/extensions/context-manager/src/extract.ts`**
+   - Updated `inferConstraintScope()` so branch-local cues still win first.
+   - Checked durable session-wide phrasing before falling back to file-path-based branch scoping.
+   - This keeps ambiguous file-specific lines branch-scoped while allowing explicit durable lines such as `Avoid touching docs/extensions.md across the whole session.` to resolve to `session`.
+
+2. **Expanded the constraint trigger in `.pi/agent/extensions/context-manager/src/extract.ts`**
+   - Introduced a shared `CONSTRAINT_RE`.
+   - Added support for the spelled-out `do not` form alongside the existing `must`, `should`, `don't`, `avoid`, and `prefer` triggers.
+
+3. **Added regression coverage in `.pi/agent/extensions/context-manager/src/extract.test.ts`**
+   - Extended the user-constraint scope test with both:
+     - `Avoid touching docs/extensions.md.` → `branch`
+     - `Avoid touching docs/extensions.md across the whole session.` → `session`
+   - Added a dedicated regression test for:
+     - `Do not add new LLM-facing tools across the whole session.` → extracted `constraint`
+
+## Tests
+- `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npx tsx --test src/extract.test.ts`
+  - Result: 5 tests passed, 0 failed
+- `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npm test`
+  - Result: 16 tests passed, 0 failed
+
+## Files Changed
+- Modified: `.pi/agent/extensions/context-manager/src/extract.ts`
+- Modified: `.pi/agent/extensions/context-manager/src/extract.test.ts`
+- Created: `.pi/reviews/context-manager-task3-durable-fix-report.md`
+
+## Self-Review Findings
+- The fix is limited to constraint detection and scope inference; no public APIs or ledger merge behavior changed.
+- Source-stable `subject` generation remains untouched.
+- Ambiguous file-specific instructions without explicit durable phrasing still stay `branch` scoped.
+- Explicit durable session-wide wording now correctly overrides file-path presence for constraint scope.
+
+## Concerns
+- Constraint extraction remains heuristic-based by design, so contradictory phrasing that mixes branch-local and session-wide cues will still resolve conservatively to `branch`.
+- No additional blocking concerns found after the targeted and full test runs.

.pi/reviews/context-manager-task3-fix-report.md

@@ -0,0 +1,41 @@
+# Context Manager Task 3 Fix Report
+
+## Status
+- Done
+- Fixed the Task 3 review findings in the extractor and strengthened coverage around extractor/ledger interaction.
+
+## Changes
+1. **Stopped cross-slice subject collisions in extracted memory**
+   - Updated `.pi/agent/extensions/context-manager/src/extract.ts` so synthetic subjects for decisions, constraints, and active tasks include the source `entryId` (for example `decision-u1-0`).
+   - This keeps independently extracted facts from different transcript slices in separate ledger slots without changing public APIs or the ledger merge contract.
+
+2. **Refined user-constraint scoping**
+   - Added a small `inferConstraintScope()` heuristic.
+   - User constraints now default to `branch` scope unless they include durable session-wide signals.
+   - Branch-local cues such as `this branch`, `for now`, `in this file`, or explicit file references stay branch-scoped.
+   - Durable cues such as `whole session`, `across branches`, `MVP`, or `context window` stay session-scoped.
+
+3. **Strengthened regression coverage**
+   - Expanded `.pi/agent/extensions/context-manager/src/extract.test.ts` to verify source metadata, stable per-slice subject generation, extractor/ledger interaction, and the refined scope heuristic.
+   - Added regression coverage proving independently extracted constraints, decisions, and active tasks all remain active after `mergeCandidates()`.
+
+## Tests
+- Focused extractor tests:
+  - `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npx tsx --test src/extract.test.ts`
+  - Result: 4 tests passed
+- Full extension suite:
+  - `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npm test`
+  - Result: 15 tests passed
+
+## Files Changed
+- Modified: `.pi/agent/extensions/context-manager/src/extract.ts`
+- Modified: `.pi/agent/extensions/context-manager/src/extract.test.ts`
+- Created: `.pi/reviews/context-manager-task3-fix-report.md`
+
+## Self-Review Findings
+- The fix stays focused on Task 3 behavior and keeps all public function signatures unchanged.
+- No ledger changes were needed; Task 2 deterministic merge behavior remains covered by the existing ledger tests and the full suite still passes.
+- The new interaction test exercises the real extractor-to-ledger path that the review flagged as missing.
+
+## Concerns
+- The extractor still uses heuristic subject generation for independently extracted items, so semantically related decisions restated in different messages will coexist unless a future task adds stronger semantic matching. That is intentional for this focused fix and avoids the reported overwrite bug.

.pi/reviews/context-manager-task3-implementer-report.md

@@ -0,0 +1,40 @@
+# Context Manager Task 3 Implementer Report
+
+## Status
+- Done
+- Implemented heuristic transcript-slice extraction in `.pi/agent/extensions/context-manager/src/extract.ts`
+- Added focused tests in `.pi/agent/extensions/context-manager/src/extract.test.ts`
+
+## Changes
+- Added `TranscriptSlice` and `extractCandidates()`.
+- Reused `MemoryCandidate`, `MemoryScope`, and `MemorySourceType` from `src/ledger.ts`.
+- Added heuristics for:
+  - user goal extraction
+  - role-aware constraint extraction
+  - decision extraction
+  - next-step / task extraction
+  - file reference extraction
+- Kept constraint extraction from duplicating structured `Goal:`, `Decision:`, and `Next:` lines so the output matches the requested candidate set.
+
+## Tests
+- Verified red state first:
+  - `cd .pi/agent/extensions/context-manager && npx tsx --test src/extract.test.ts`
+  - Result: failed with `ERR_MODULE_NOT_FOUND` because `src/extract.ts` did not exist
+- Verified green state after implementation:
+  - `cd .pi/agent/extensions/context-manager && npx tsx --test src/extract.test.ts`
+- Ran full extension test suite:
+  - `cd .pi/agent/extensions/context-manager && npm test`
+
+## Files Changed
+- Created `.pi/agent/extensions/context-manager/src/extract.ts`
+- Created `.pi/agent/extensions/context-manager/src/extract.test.ts`
+- Created `.pi/reviews/context-manager-task3-implementer-report.md`
+
+## Self-Review Findings
+- The implementation is tightly scoped to extraction only.
+- Test coverage matches the task requirements and verifies both user and non-user sources.
+- File reference extraction is intentionally heuristic and limited to the requested extensions.
+
+## Concerns
+- The provided implementation snippet would also classify `Decision: ... avoid ...` as a constraint; I prevented that duplicate extraction so the required tests pass.
+- No other concerns.

.pi/reviews/context-manager-task3-scope-fix-report.md

@@ -0,0 +1,42 @@
+# Context Manager Task 3 Scope Fix Report
+
+## Status
+- Done
+- Tightened the remaining user-constraint scope heuristic so ambiguous constraint lines stay `branch` scoped.
+- Preserved the source-stable subject behavior introduced in the prior Task 3 fix.
+
+## Changes
+1. **Narrowed durable session promotion in `.pi/agent/extensions/context-manager/src/extract.ts`**
+   - Removed the bare-keyword session promotion behavior for terms such as `MVP` and `context window`.
+   - Kept `session` scope promotion limited to clearer durability signals such as `whole session`, `across branches`, `session-wide`, `project-wide`, and similar explicit phrasing.
+
+2. **Strengthened local-scope detection**
+   - Treated `this module` / `in this module` as branch-local cues so module-local rename instructions do not leak across branch switches.
+
+3. **Added regression coverage in `.pi/agent/extensions/context-manager/src/extract.test.ts`**
+   - Updated the existing extraction expectation so `We must adapt to the active model context window.` remains `branch` scoped.
+   - Added explicit regression assertions for the reviewer’s false-positive examples:
+     - `We should keep the MVP branch experimental.` → `branch`
+     - `We should rename the context window helper in this module.` → `branch`
+   - Kept a durable-session control case to verify explicit session phrasing still promotes correctly.
+
+## Tests
+- `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npx tsx --test src/extract.test.ts`
+  - Result: 4 tests passed, 0 failed
+- `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npm test`
+  - Result: 15 tests passed, 0 failed
+
+## Files Changed
+- Modified: `.pi/agent/extensions/context-manager/src/extract.ts`
+- Modified: `.pi/agent/extensions/context-manager/src/extract.test.ts`
+- Created: `.pi/reviews/context-manager-task3-scope-fix-report.md`
+
+## Self-Review Findings
+- The fix stays narrowly scoped to `inferConstraintScope()` heuristics and targeted regression coverage.
+- Public APIs and exported function signatures are unchanged.
+- The previously fixed source-stable `subject` generation remains untouched.
+- The updated tests cover both the reviewer’s concrete false positives and an existing ambiguous `context window` example.
+
+## Concerns
+- Constraint scoping remains heuristic-based by design, so the extractor is intentionally conservative: unclear user constraints now stay `branch` scoped unless the text explicitly signals broader durability.
+- No additional blocking concerns found after the targeted and full test runs.

.pi/reviews/context-manager-task4-boundary-fix-report.md

@@ -0,0 +1,13 @@
+# Task 4 Boundary Fix Report
+
+- **Status:** DONE
+- **Changes:** Updated `.pi/agent/extensions/context-manager/src/prune.ts` so `isBulky()` does not count the final empty split segment when content ends with a trailing newline. This keeps exactly-150-line tool output at the non-bulky boundary while preserving the existing byte and over-threshold line behavior. Added a regression test in `.pi/agent/extensions/context-manager/src/prune.test.ts` covering an old tool result with exactly 150 real lines plus a trailing newline.
+- **Tests:**
+  - `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npx tsx --test src/packet.test.ts src/prune.test.ts` → 8 passed, 0 failed
+  - `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npm test` → 24 passed, 0 failed
+- **Files changed:**
+  - `.pi/agent/extensions/context-manager/src/prune.ts`
+  - `.pi/agent/extensions/context-manager/src/prune.test.ts`
+  - `.pi/reviews/context-manager-task4-boundary-fix-report.md`
+- **Self-review findings:** The fix is narrowly scoped to line counting inside `isBulky()`, keeps the public API unchanged, and preserves the existing prune-window behavior for bulky vs. non-bulky tool results outside this exact trailing-newline boundary case.
+- **Concerns:** None.

.pi/reviews/context-manager-task4-fix-report.md

@@ -0,0 +1,46 @@
+# Context Manager Task 4 Fix Report
+
+## Status
+- Fixed
+- Packet trimming now selects facts under the cap instead of skipping whole sections.
+- Targeted packet/prune tests and the full package test suite pass.
+
+## Changes
+- Updated `.pi/agent/extensions/context-manager/src/packet.ts` to:
+  - score active facts globally with the existing kind weights
+  - select facts one at a time under `packetTokenCap`
+  - render the final packet in the existing stable section order
+  - keep per-section bullet ordering priority-based
+- Replaced the weak packet test in `.pi/agent/extensions/context-manager/src/packet.test.ts` with cap-edge assertions that check exact output and prove:
+  - a tight cap keeps the highest-priority fact from a partially fitting section
+  - cross-kind weights prefer `activeTask` over `decision` when only one can fit
+- Expanded `.pi/agent/extensions/context-manager/src/prune.test.ts` to cover:
+  - old bulky tool results being pruned
+  - recent bulky tool results being preserved
+  - old non-bulky tool results being preserved
+  - the `recentUserTurns` boundary behavior
+
+## Tests
+- Red check before the packet fix:
+  - `cd .pi/agent/extensions/context-manager && npx tsx --test src/packet.test.ts`
+  - Result: 2 failing packet tests, showing whole-section trimming and cross-kind selection problems
+- Focused verification:
+  - `cd .pi/agent/extensions/context-manager && npx tsx --test src/packet.test.ts src/prune.test.ts`
+  - Result: 6/6 passing
+- Full package verification:
+  - `cd .pi/agent/extensions/context-manager && npm test`
+  - Result: 22/22 passing
+
+## Files Changed
+- `.pi/agent/extensions/context-manager/src/packet.ts`
+- `.pi/agent/extensions/context-manager/src/packet.test.ts`
+- `.pi/agent/extensions/context-manager/src/prune.test.ts`
+- `.pi/reviews/context-manager-task4-fix-report.md`
+
+## Self-Review Findings
+- The packet builder now applies weights meaningfully across kinds because selection happens from a global priority list before rendering.
+- Rendered output still uses the original section headings and section order.
+- `prune.ts` behavior did not need logic changes; the missing boundary coverage is now explicit in tests.
+
+## Concerns
+- None.

.pi/reviews/context-manager-task4-implementer-report.md

@@ -0,0 +1,37 @@
+# Context Manager Task 4 Implementer Report
+
+## Status
+- Done
+- Implemented packet building in `.pi/agent/extensions/context-manager/src/packet.ts`
+- Implemented context pruning in `.pi/agent/extensions/context-manager/src/prune.ts`
+- Added focused tests for both modules
+
+## Changes
+- Added `buildContextPacket()` with ordered section emission, priority sorting, and packet token-cap enforcement.
+- Added `pruneContextMessages()` with recent-turn preservation and bulky old tool-result pruning.
+- Reused existing policy and ledger types from `src/config.ts` and `src/ledger.ts`.
+- Kept the implementation scoped to Task 4 only.
+
+## Tests
+- Verified red state first:
+  - `cd .pi/agent/extensions/context-manager && npx tsx --test src/packet.test.ts src/prune.test.ts`
+  - Result: failed with `ERR_MODULE_NOT_FOUND` because `src/packet.ts` and `src/prune.ts` did not exist yet
+- Verified green state after implementation:
+  - `cd .pi/agent/extensions/context-manager && npx tsx --test src/packet.test.ts src/prune.test.ts`
+- Ran full extension test suite:
+  - `cd .pi/agent/extensions/context-manager && npm test`
+
+## Files Changed
+- Created `.pi/agent/extensions/context-manager/src/packet.ts`
+- Created `.pi/agent/extensions/context-manager/src/prune.ts`
+- Created `.pi/agent/extensions/context-manager/src/packet.test.ts`
+- Created `.pi/agent/extensions/context-manager/src/prune.test.ts`
+- Created `.pi/reviews/context-manager-task4-implementer-report.md`
+
+## Self-Review Findings
+- Section ordering and token-cap behavior are covered by the packet test.
+- Pruning behavior is covered by the prune test and preserves the latest user turn.
+- No unrelated files in the extension package were modified.
+
+## Concerns
+- No known concerns.

.pi/reviews/context-manager-task5-fix-report.md

@@ -0,0 +1,21 @@
+# Task 5 Fix Report
+
+- **Status:** DONE
+- **Changes:**
+  - Updated `.pi/agent/extensions/context-manager/src/runtime.ts` to store the last observed token count, recompute `lastZone` whenever policy changes, and return a cloned policy from `getPolicy()`.
+  - Updated `.pi/agent/extensions/context-manager/src/persist.ts` to validate and sanitize snapshot data before restoring it, skip malformed newer snapshot entries, and preserve backward compatibility by keeping `lastObservedTokens` optional.
+  - Expanded `.pi/agent/extensions/context-manager/src/runtime.test.ts` with zone recomputation, restore-policy, and no-alias policy/snapshot coverage.
+  - Expanded `.pi/agent/extensions/context-manager/src/persist.test.ts` with malformed snapshot skipping and deep clone coverage.
+  - Expanded `.pi/agent/extensions/context-manager/src/summaries.test.ts` with exact summary content and ordering assertions.
+- **Tests:**
+  - `cd .pi/agent/extensions/context-manager && npx tsx --test src/runtime.test.ts src/persist.test.ts src/summaries.test.ts` → 9 passed, 0 failed
+  - `cd .pi/agent/extensions/context-manager && npm test` → 33 passed, 0 failed
+- **Files changed:**
+  - `.pi/agent/extensions/context-manager/src/runtime.ts`
+  - `.pi/agent/extensions/context-manager/src/persist.ts`
+  - `.pi/agent/extensions/context-manager/src/runtime.test.ts`
+  - `.pi/agent/extensions/context-manager/src/persist.test.ts`
+  - `.pi/agent/extensions/context-manager/src/summaries.test.ts`
+  - `.pi/reviews/context-manager-task5-fix-report.md`
+- **Self-review findings:** The fix stays within Task 5 scope, keeps the existing runtime API surface intact, and adds regression coverage for each review finding that previously slipped through.
+- **Concerns:** None.

.pi/reviews/context-manager-task5-implementer-report.md

@@ -0,0 +1,55 @@
+# Context Manager Task 5 Implementer Report
+
+## Status
+- Completed Task 5.
+- Required tests pass.
+- Full extension test suite passes.
+
+## What you implemented
+- Added `src/summaries.ts` with:
+  - `buildCompactionSummary()`
+  - `buildBranchSummary()`
+  - `buildResumePacket()`
+- Added `src/persist.ts` with:
+  - `SNAPSHOT_ENTRY_TYPE`
+  - `RuntimeSnapshot`
+  - `serializeSnapshot()`
+  - `deserializeLatestSnapshot()`
+- Added `src/runtime.ts` with `createContextManagerRuntime()` to:
+  - ingest transcript slices via `extractCandidates()` + `mergeCandidates()`
+  - observe token pressure via `zoneForTokens()`
+  - build packets via `buildContextPacket()`
+  - expose compaction, branch, and resume summaries
+  - update mode and context window
+  - snapshot and restore runtime state
+- Added the required tests for summaries, persistence, and runtime.
+
+## What you tested and results
+1. Confirmed the new tests initially failed because the new source files did not exist.
+   - Command: `cd .pi/agent/extensions/context-manager && npx tsx --test src/summaries.test.ts src/persist.test.ts src/runtime.test.ts`
+   - Result: failed with `ERR_MODULE_NOT_FOUND` for `summaries.ts`, `persist.ts`, and `runtime.ts`
+2. Ran the required Task 5 tests after implementation.
+   - Command: `cd .pi/agent/extensions/context-manager && npx tsx --test src/summaries.test.ts src/persist.test.ts src/runtime.test.ts`
+   - Result: 5/5 passing
+3. Ran the full extension test suite.
+   - Command: `cd .pi/agent/extensions/context-manager && npm test`
+   - Result: 29/29 passing
+
+## Files changed
+- Created `.pi/agent/extensions/context-manager/src/summaries.ts`
+- Created `.pi/agent/extensions/context-manager/src/persist.ts`
+- Created `.pi/agent/extensions/context-manager/src/runtime.ts`
+- Created `.pi/agent/extensions/context-manager/src/summaries.test.ts`
+- Created `.pi/agent/extensions/context-manager/src/persist.test.ts`
+- Created `.pi/agent/extensions/context-manager/src/runtime.test.ts`
+- Created `.pi/reviews/context-manager-task5-implementer-report.md`
+
+## Self-review findings
+- Implementation matches the task-provided API and file list.
+- Reused existing `config`, `ledger`, `extract`, and `packet` modules as requested.
+- Kept scope to Task 5 only; did not start Task 6.
+- Verified the red/green cycle for the new tests.
+
+## Any concerns
+- No functional concerns from this task.
+- There are unrelated untracked review files already present in `.pi/reviews/`; they were not included in this task’s changes.

.pi/reviews/context-manager-task5-legacy-fix-report.md

@@ -0,0 +1,29 @@
+# Context Manager Task 5 Legacy Fix Report
+
+## Status
+- DONE
+
+## Changes
+- Updated `.pi/agent/extensions/context-manager/src/runtime.ts` so `syncSnapshotZone()` no longer preserves a stored legacy `lastZone` when `lastObservedTokens` is missing.
+- Legacy snapshots without token observations now normalize back to `lastZone: "green"`, which matches the runtime's safe default when pressure cannot be recomputed.
+- Added regression coverage in `.pi/agent/extensions/context-manager/src/runtime.test.ts` for both direct restore of a legacy snapshot and the real persisted path of `deserializeLatestSnapshot(...)` followed by `runtime.restore(...)`.
+- Left new-schema snapshot behavior unchanged: snapshots that include `lastObservedTokens` still recompute `lastZone` against the receiving runtime policy.
+
+## Tests
+- `cd .pi/agent/extensions/context-manager && npx tsx --test src/runtime.test.ts` → 6 passed, 0 failed
+- `cd .pi/agent/extensions/context-manager && npx tsx --test src/runtime.test.ts src/persist.test.ts src/summaries.test.ts` → 11 passed, 0 failed
+- `cd .pi/agent/extensions/context-manager && npm test` → 35 passed, 0 failed
+
+## Files Changed
+- `.pi/agent/extensions/context-manager/src/runtime.ts`
+- `.pi/agent/extensions/context-manager/src/runtime.test.ts`
+- `.pi/reviews/context-manager-task5-legacy-fix-report.md`
+
+## Self-Review Findings
+- The fix is narrowly scoped to restore/policy resync behavior for snapshots missing `lastObservedTokens`.
+- The public API stays the same.
+- New-schema snapshots keep the existing recompute behavior.
+- Legacy snapshots no longer carry a stale red/yellow/compact zone into a runtime that lacks the data needed to validate it.
+
+## Concerns
+- None.

.pi/reviews/context-manager-task6-fix-2-report.md

@@ -0,0 +1,30 @@
+# Context Manager Task 6 Fix 2 Report
+
+## Status
+Done. Fixed the remaining branch rehydration and `/ctx-mode` persistence regressions and verified them with targeted and full test runs.
+
+## Changes
+- Updated `.pi/agent/extensions/context-manager/index.ts` rehydration to restore the latest valid snapshot ledger as the base state and replay only tracked messages that occur after that snapshot entry.
+- Kept empty-ledger startup behavior when a branch has no valid snapshot.
+- Preserved live in-memory mode changes during `turn_end` so `/ctx-mode aggressive` wins over an older persisted snapshot mode before the next snapshot is appended.
+- Strengthened `.pi/agent/extensions/context-manager/src/extension.test.ts` with integration-style regressions for:
+  - `session_tree` on a snapshot-only branch producing a hidden packet from snapshot-backed ledger state.
+  - `/ctx-mode aggressive` persisting `mode: "aggressive"` and the corresponding aggressive-zone token classification on the next `turn_end`.
+
+## Tests
+- `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npx tsx --test src/extension.test.ts` ✅
+- `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npm test` ✅
+
+## Files Changed
+- `.pi/agent/extensions/context-manager/index.ts`
+- `.pi/agent/extensions/context-manager/src/extension.test.ts`
+- `.pi/reviews/context-manager-task6-fix-2-report.md`
+
+## Self-review Findings
+- Snapshot-only branches now retain snapshot ledger contents for packet injection and command inspection instead of dropping to an empty ledger.
+- Rehydration no longer replays pre-snapshot transcript entries, which avoids rebuilding stale state on top of a newer snapshot.
+- The `/ctx-mode` fix is narrowly scoped to `turn_end`; public commands and extension hook API stay unchanged.
+
+## Concerns
+- None with the fix itself.
+- The worktree still contains unrelated untracked historical review files under `.pi/reviews/`; they were left untouched and excluded from the focused commit.

.pi/reviews/context-manager-task6-fix-report.md

@@ -0,0 +1,44 @@
+# Context Manager Task 6 Fix Report
+
+## Status
+- Completed
+- Task 6 review findings addressed in the context-manager extension
+- Verification commands requested in the task were run and passed
+
+## Changes
+- Added authoritative branch rebuild logic in `.pi/agent/extensions/context-manager/index.ts`.
+  - Syncs the runtime context window
+  - Reads the latest valid snapshot from `ctx.sessionManager.getBranch()`
+  - Restores snapshot metadata with an empty ledger
+  - Replays `user`, `assistant`, and `toolResult` messages from the active branch into the runtime
+  - Refreshes the footer status from the rebuilt runtime
+- Hooked that rebuild logic into:
+  - `session_start`
+  - `turn_end` (before snapshot persistence)
+  - `session_tree`
+- Kept incremental `tool_result` ingestion for in-turn responsiveness, but the branch rebuild is now authoritative at synchronization points.
+- Tightened some extension-boundary typing in `index.ts` while making the fix.
+- Replaced the shallow registration-only test with integration-style coverage that exercises the registered handlers.
+
+## Tests
+- `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npx tsx --test src/extension.test.ts`
+  - Passed: 3/3
+- `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npm test`
+  - Passed: 38/38
+- `cd /home/alex/dotfiles/.worktrees/context-manager-extension && git diff --check -- .pi/agent/extensions/context-manager/index.ts .pi/agent/extensions/context-manager/src/extension.test.ts`
+  - Passed with no diff/whitespace errors
+
+## Files Changed
+- `.pi/agent/extensions/context-manager/index.ts`
+- `.pi/agent/extensions/context-manager/src/extension.test.ts`
+- `.pi/reviews/context-manager-task6-fix-report.md`
+
+## Self-review Findings
+- `turn_end` now persists snapshots built from the actual current branch, so the ledger includes facts extracted from branch `user` and `assistant` messages instead of depending on `tool_result` events alone.
+- `session_tree` now resets runtime state immediately after navigation, so the next `context` packet reflects the destination branch instead of the abandoned one.
+- The new tests invoke real registered handlers and verify behavior, not just registration names.
+- Public command names and extension surface area remained unchanged.
+
+## Concerns
+- No blocking concerns.
+- Note: branch-local mode changes made via `/ctx-mode` are still persisted on the next `turn_end` snapshot. If a branch has no snapshot yet, restoration falls back to default branch state until a snapshot exists. This was left unchanged to keep the Task 6 fix focused.

.pi/reviews/context-manager-task6-implementer-report.md

@@ -0,0 +1,48 @@
+# Context Manager Task 6 Implementer Report
+
+## Status
+Implemented and verified.
+
+## What you implemented
+- Wired the context manager runtime into the extension entrypoint in `.pi/agent/extensions/context-manager/index.ts`.
+- Registered the required slash commands through new `src/commands.ts`:
+  - `/ctx-status`
+  - `/ctx-memory`
+  - `/ctx-refresh`
+  - `/ctx-compact`
+  - `/ctx-mode`
+- Registered the required pi hooks in `index.ts`:
+  - `session_start`
+  - `tool_result`
+  - `turn_end`
+  - `context`
+  - `session_before_compact`
+  - `session_before_tree`
+- Added `src/extension.test.ts` to verify the extension registers the expected commands and hooks.
+
+## What you tested and results
+1. Wrote `src/extension.test.ts` first and ran:
+   - `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npx tsx --test src/extension.test.ts`
+   - Result before implementation: **FAIL** as expected because the extension registered no commands/hooks yet.
+2. Ran the required targeted test again after implementation:
+   - `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npx tsx --test src/extension.test.ts`
+   - Result: **PASS**
+3. Ran the full package test suite:
+   - `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npm test`
+   - Result: **PASS** (`36` tests passed, `0` failed)
+
+## Files changed
+- Modified: `.pi/agent/extensions/context-manager/index.ts`
+- Created: `.pi/agent/extensions/context-manager/src/commands.ts`
+- Created: `.pi/agent/extensions/context-manager/src/extension.test.ts`
+- Created: `.pi/reviews/context-manager-task6-implementer-report.md`
+
+## Self-review findings
+- Implementation matches the required command names and hook names exactly.
+- The runtime is restored from persisted snapshots on `session_start` and persisted again on `turn_end`.
+- The context hook prunes bulky tool results and injects the built packet as a hidden custom message only when packet text exists.
+- Compaction and tree hooks delegate summary generation to the runtime helpers without introducing unrelated scope.
+
+## Any concerns
+- No functional concerns with Task 6 implementation.
+- The worktree already contained unrelated untracked review artifacts before this task; they were not part of this implementation.

.pi/reviews/context-manager-task6-mode-fix-report.md

@@ -0,0 +1,20 @@
+# Context Manager Task 6 Mode Fix Report
+
+- **Status:** DONE
+- **Changes:**
+  - Updated `.pi/agent/extensions/context-manager/src/commands.ts` so a successful `/ctx-mode` immediately appends a serialized `context-manager.snapshot` entry after `runtime.setMode(...)`.
+  - Kept the public command contract stable: the command name is unchanged, the invalid-usage warning string is unchanged, and the existing `turn_end` snapshot persistence path is still active.
+  - Added an integration-style regression test in `.pi/agent/extensions/context-manager/src/extension.test.ts` that starts from a `balanced` snapshot, runs `/ctx-mode aggressive`, and verifies the branch immediately persists a new snapshot with `mode: "aggressive"` before any `turn_end`.
+  - Updated the existing `/ctx-mode` + `turn_end` test to assert both snapshots: the immediate command-path snapshot and the later `turn_end` snapshot with refreshed token pressure data.
+- **Tests:**
+  - `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npx tsx --test src/extension.test.ts` → 5 passed, 0 failed
+  - `cd /home/alex/dotfiles/.worktrees/context-manager-extension/.pi/agent/extensions/context-manager && npm test` → 40 passed, 0 failed
+- **Files changed:**
+  - `.pi/agent/extensions/context-manager/src/commands.ts`
+  - `.pi/agent/extensions/context-manager/src/extension.test.ts`
+  - `.pi/reviews/context-manager-task6-mode-fix-report.md`
+- **Self-review findings:**
+  - The fix is narrowly scoped to the `/ctx-mode` success path and reuses the existing snapshot serializer and append-entry persistence mechanism.
+  - The regression coverage exercises the actual command path instead of only verifying later `turn_end` behavior.
+  - `turn_end` persistence remains intact and now appends a fresh follow-up snapshot with updated token usage, which is explicitly covered by the adjusted integration test.
+- **Concerns:** None.