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Merge branch 'codex/invariant-service-seam' into codex/invariant-package-registration-gate

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Tianyi Cui
2026-07-20 19:48:51 +08:00
parent 3b7ce2e682 2f3ca3027b
commit 9c4cc05da6
391 changed files with 15415 additions and 8532 deletions
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packages/compact/compact/README.md
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@@ -38,7 +38,7 @@ The private per-session cache is keyed by `session.surface.replaceGeneration` an
1. appends `compact/start` (log-only) — acquires the lock,
2. summarizes the range,
3. appends `compact/summary` (log-only) — provenance: summary, range, shadowed seqs, token count, and provider/model call envelope,
4. appends a single `user/message` with `surfaceOp: { op: 'replace', start, end }` carrying the summary — **the only surface mutation**,
4. appends a single `user/message` with `surfaceOp: { op: 'replace', start, end }` carrying the summary — **the only surface mutation in this operation**,
5. appends `compact/end` (log-only) — releases the lock.
The surface mutation (step 4) sits **inside** the lock bracket: `compact/end` is the last event, so the lock is never released before the mutation lands. A crash between `compact/start` and `compact/end` therefore leaves a detectable orphaned lock (a `compact/start` with no matching `compact/end`) rather than a `compact/end` that falsely claims compaction finished while the surface was never shadowed.
@@ -90,5 +90,5 @@ No conversation-cache invalidation. A consumer's auxiliary request can reuse onl
## Known Limitations and Deferred Work
- **No model-facing consumer tier yet** — `@deepseek-ai/dsh-tool-compact` (the `/compact` tool) is deferred; compaction is reachable only via direct `ctx.compact` calls or a backend's auto listener.
- **Single-unit overflow is out of contract** — one indivisible unit (a closed tool pair or a large pasted `user/message`) alone exceeding the budget cannot be compacted.
- **Some single-unit overflow is out of contract** — balanced summary compaction cannot split one indivisible unit. The optional pruning companion can still repair a closed tool pair when text-bearing tool-result bulk is removable; a large non-tool node or a tool unit whose non-prunable remainder is oversized cannot be compacted.
- **An envelope that alone approaches the window is not surface-compaction work** — compaction shrinks derived history, never the system prompt, tools, or session prefix.