refactor(kernel): restrict tape-anchor to topic-switch only (#1355)#1356
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refactor(kernel): restrict tape-anchor to topic-switch only (#1355)#1356
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Remove code paths that pushed the LLM to anchor on large tool outputs, conflating anchor (topic boundary marker) with context compression (auto-fold's job). GPT models were especially susceptible, destroying context and KV cache with excessive anchoring. Removed: - `should_remind_tape_anchor` function + LARGE/MEDIUM_TOOL_RESULT_CHARS constants - `did_create_anchor` (dead code, never called in production) - `needs_anchor_reminder` variable and dynamic injection block - 4 associated tests Changed: - context_contract now frames anchor as topic-switch checkpoint only Closes #1355
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Summary
should_remind_tape_anchor+ constants that injected anchor reminders on large tool outputs — large output ≠ topic switchdid_create_anchor(dead code, never called in production)needs_anchor_remindervariable and dynamic injection blockcontext_contractto frame anchor as topic-boundary checkpoint only, not a compression toolType of change
refactorComponent
coreCloses
Closes #1355
Test plan
cargo check -p rara-kernelpassescargo test -p rara-kernel— 397 tests pass, 0 failurescargo clippycleancargo +nightly fmtclean🤖 Generated with Claude Code