Codex round 1 CBR-002: `resolveConfig` rejected only `summarizationMaxTokens + retainTokens > threshold` (allowing equality), but `compactIfNeeded` declines only when the estimate is `< threshold`. At exact equality the post-compaction history sits at the threshold and re-triggers on the very next check. Make the bound strict (`>=` rejects), so post-compaction history is guaranteed strictly below the threshold. Updated the boundary test (the sum-equals-threshold case is now rejected, not accepted) and added an "accepts just below the threshold" case; nudged one unrelated config that incidentally sat at the equality boundary.
compact/ — compaction capability family
A three-package capability seam (see capability seams): an abstract compaction interface, a backend that summarizes, and the model-facing tool that consumes it. The interface and a first backend (compact-basic/) exist; the consumer tool is deferred. All product packages.
| Package | Role | ctx key |
|---|---|---|
compact/ |
Abstract compaction seam (interface + compact/* events + CompactionResult) |
ctx.compact |
compact-basic/ |
A backend: char/4 estimation + token-budget retention + llm.stream() summarization |
(registers ctx.compact) |
tool-compact/ (deferred) |
Model-facing /compact tool over ctx.compact |
(registers on ctx.tools) |
The interface lives at compact/compact/, the backend at compact/compact-basic/. Unlike the bash seam, it depends on dsh-session and dsh-llm — its verbs are defined over a Session and its output is the ContentBlock vocabulary, so the contract cannot be expressed without naming them. That deviation from the "interface depends only on cordis" guidance is intentional and recorded in the compaction capability-seam RFC. A tokenizer- or template-based backend would replace compact-basic without touching the interface or the tool.