2026.10.03 - Phase 1: Maintenance Cache Evidence

[lanhhoang]

• Warning-free repository checks — pnpm lint now runs biome lint --error-on-warnings ., so a lint warning fails the build instead of scrolling past. All 57 prior warnings were resolved with typed test helpers (requireDefined, getMessageText) and explicit control flow; no rule was weakened (.github/workflows/quality.yml, package.json, tests/helpers.ts, src/messages/priority.ts).
• Dead manual-trigger state removed — pendingManualTrigger field, the unreachable compress-pending manualMode variant, and the PendingManualTrigger interface are gone. manualMode is now exactly false | "active", pinned by a type-level expectTypeOf test (src/state/types.ts, src/state/state.ts, tests/commands-manual.test.ts, tests/persistence.test.ts).
• Privacy-safe prompt-cache evidence — pnpm analyze:sessions now reports UsageTotals (per-corpus and per-file input/output/cacheRead/cacheWrite plus optional cacheWrite1h/reasoning, provider-reported totalTokens, and each cost component), a LatencySummary from user/tool-result → assistant transitions, and separate malformedUsage / malformedLatency diagnostics. Usage is read from every Pi carrier: assistant messages (required), standalone usage entries, tool results, compactions, and branch summaries (scripts/analyze-sessions.ts, tests/session-analysis.test.ts).
• Identifier-free session reports — files are now identified by a one-based fileIndex only; input paths, basenames, provider/model names, usage kinds, and notes are never retained. Existing tests/priority.test.ts, tests/inject.test.ts, tests/pipeline.test.ts, tests/prune.test.ts, tests/tool-cache.test.ts, tests/integration.test.ts, tests/compress-range.test.ts, tests/context-limits.test.ts, and tests/index.test.ts were updated to the new contract.
• Version bump and docs refresh — version 0.6.0 → 0.6.1 (package.json); CHANGELOG.md adds a [0.6.1] - 2026-10-03 entry; README.md replaces the 0.4.0/0.4.1/0.5.0/0.6.0 blocks with a focused "What's new in 0.6.1" section and the explicit "no pruning policy changed" note (package.json, CHANGELOG.md, README.md).
• Plan + design refresh — Phase 1 plan and the improvement-roadmap design spec now reflect the actual 0.6.1 surface: provenance scope, identifier-free reporting, the four required-usage carriers, and Node 22.19.0 vs 24 evidence gates (docs/superpowers/specs/2026-10-03-pi-dcp-improvement-roadmap-design.md, docs/superpowers/plans/2026-10-03-phase-01-pi-dcp-maintenance-cache-evidence.md).

No pruning policy, incremental-pruning timing, or strategy eligibility changed in this release; no published schema, no dependency pins, no release workflow, and no Pi/OpenCode reference repositories were touched.