[teamleaderleo]

Carries #30712 (a ChatGPT draft), rebased onto current feat-cmux-next with its commits unchanged.

Leo: "oh btw i talked with chatgpt and they raised a bunch more drafts and issues across cmuxterm-hq, cmux, and cmux-platform. some stuff worth looking at"

What

running_processes_read (called for every chat by host load and views) and any_process_running (idle, cancel and stop-if-idle) scanned a session's whole process history under the table lock. With thousands of completed records that is a linear scan per call.

The process table now keeps an ordered set of the running slots, maintained by insert, fold, upsert, lose_running and the read/rebuild paths. lose_running walks the set oldest-first, the same order as before. Test: hub::processes::process_active_tests (3,000 completed records plus ordered live slots).

No timer, observer or loop is added. No before/after number; this is a scan-to-index change with no harness in place.

Leo-ask: ask-e06a62154f

Agent session: agent session

🤖 Generated with Claude Code

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Summary by cubic

Carries #30712 to replace linear scans of process history with a live index of running slots, so idle checks and running-process counts stay constant regardless of how many completed records accumulate.

Rebased onto feat-cmux-next and re-merged to stay current. ProcessTable now keeps an ordered set of active process indexes, updated on insert, upsert, fold, and lose_running; lose_running preserves the original oldest-first notification order. No timer, observer, or loop is added. Adds tests covering 3,000 completed records with interleaved status updates.

^{Written for commit d12b3c1. Summary will update on new commits.}

[github-actions]

cmux status _{(one comment, edited in place; each line is updated by the job that owns it)}

Review d12b3c1: HQ feed card · gallery before/after runs · checks

App of this head (app.zip, kept 1 day)

gh workflow run reload-build.yml -R manaflow-ai/cmux --ref feat-cmux-next -f tag=pr31539 -f ref=lane/e06a-30712 -f platform=macos -f backend_mode=local

web and size checks: green

[teamleaderleo]

Review (codex gpt-6-astra high, next-review): SHIP at 68534a4

SHIP at 68534a4

Visual verdict: unchanged by this diff

The live-index invariant is maintained across all process mutation paths. Focused tests could not run because Cargo is unavailable.

Follow-ups: none

[cmux-bot]

cmux-bot approves 68534a4: an independent review passed this exact head (next-review receipt by teamleaderleo). A push needs a new review; a later BLOCK at this head dismisses this approval.

[teamleaderleo]

Review (codex gpt-6-astra high, sweep, via the review router; full diff from merge base d63ac15 to this head): SHIP at 68534a4

No P1/P2 findings.

A newer verdict blocks d12b3c1 (no independent SHIP at the head).

[blacksmith-sh]

Found 2 test failures on Blacksmith runners:

Failures

Test	View Logs
test_every_compile_job_names_its_warm_sources (main.ThisTree.test_every_compile_job _names_its_warm_sources)/ test_every_compile_job_names_its_warm_sources (main.ThisTree.test_every_compile_job _names_its_warm_sources)	View Logs
test_the_repository_highlights_validate (main.DigestTests.test_the_repository_highl ights_validate)/ test_the_repository_highlights_validate (main.DigestTests.test_the_repository_highl ights_validate)	View Logs

^{Need help on this PR? Tag @codesmith-bot with what you need.}

[teamleaderleo]

Review (codex gpt-6.1-sol xhigh, next-review): BLOCK at d12b3c1

BLOCK at d12b3c1
Visual verdict: no images; Leo tries the build

1. [P1] [blocking] review/TARGET:5 — Review cannot be completed: review/pr.diff is empty, and no base checkout or Git history is available to establish the changes. Supply the actual diff so regressions can be reviewed.

[teamleaderleo]

Closing as superseded. The original #30712 merged as 5a0fd07, and the follow-up #31695 fixed the panic-ratchet red it caused. Merging this branch into feat-cmux-next now leaves the tree unchanged, so nothing is left to land.