components C3a: context awareness + custom statusline command - #294
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Status/context half of plan §3 (C3b ships the transcript polish):
- context-% status segment + context-low transcript row, driven by
the LAST response's prompt-side tokens (new last-wins last_* keys
in the compat usage incl. cache read/creation — the cumulative
sums double-count and drop cache, TS tokens.ts:407-420); zeroed
on /clear and /resume
- threshold math delegates to the CANONICAL autoCompact port the
engine already uses (review caught a forked module warning at the
engine's compact point — the fork is gone); the canonical percent
display modernized to current-TS raw-window half-up rounding;
warning copy branches on auto-compact enabled ("N% until
auto-compact") vs disabled ("Context low … /compact")
- settings statusLine.command runner (TS executeStatusLineCommand:
JSON payload on stdin w/ TS field shapes, 5s timeout, failures →
no text); event-driven refresh on run-finish + 30s hot-reload
keepalive instead of hot polling; thread worker hardened so no
codec/teardown error can exit the app
20 new tests (thresholds DERIVED from the canonical functions and
pinning warn < compact < window); suite baseline-identical.
Critic-approved after one REQUEST CHANGES round (usage measure,
threshold fork, worker crash vectors, payload shapes, hot polling).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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…-context-status components C3a: context awareness + custom statusline command
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Summary
last_*usage keys incl. cache read/creation — cumulative sums double-count, TStokens.ts:407-420); zeroed on/clear///resumeautoCompact.tsport the engine already uses (review killed a forked module that warned exactly at the engine's compact point); canonical percent modernized to current-TS raw-window display; copy branches on auto-compact enabled/disabledsettings.statusLine.commandrunner (TSexecuteStatusLineCommandcontract: JSON stdin payload with TS field shapes, 5s timeout, failures → no text), event-driven refresh + 30s keepalive (no hot polling), worker hardened against codec/teardown crashesuv.lockdrift deliberately excluded (stale-lock regen unrelated to this change)Test plan
current_usageobject/null; runner contract (first-line, non-zero, timeout, JSON stdin via sys.executable); once-per-crossing warning + re-arm; hermetic widget tests🤖 Generated with Claude Code