Repository source: docs/plans/checkout_overview/checkout_overview_debug_log.md
Checkout overview debug log
2026-10-23T14:15:51+00:00 — Step 1
Necessary/useful instructions
step1_solution_assessment.md, Objective/revision: separates selected cached semantics from a parallel synchronous alternative and makes latency/cache limits reviewable before changing approved command behavior. Retain.RAILSPIKE.md, Enhancement Requests: records background lifecycle as a changed-scope follow-up and preserves the original implementation history. Retain.
Redundant/unnecessary instructions
No supported findings.
Inapplicable instructions
Implementation branching and stage commit rules apply only after Step 3 approval; no application code changed here.
Uncertain assessments
The user selected a recommendation before the formal assessment; an additional Step 1 gate adds a round trip, but existing instructions require it. No inference that direction selection authorizes later implementation.
2026-10-23T14:27:34+00:00 — Step 2
Necessary/useful instructions
Step 2 Known environment and recovery: distinguishes on-host foreground timing from a network-complete preview guarantee and requires visible unchecked/error recovery. Retain.
Step 2 shared component inventory/risks: identifies the current lock and history classifier as integration boundaries before worker design. Retain.
Redundant/unnecessary instructions
No supported findings.
Inapplicable instructions
Forum UI/theme/navigation and read-model schema checks do not apply to terminal-only tooling.
Uncertain assessments
The concise one-page target is difficult alongside required user recovery, worker lifecycle and study metadata; kept implementation algorithms out of Step 2, retaining testable outcomes.
2026-10-23T14:33:16+00:00 — Step 3
Necessary/useful instructions
Step 3 Key Risks/dependencies: lock-free overview is isolated before detached launch, and serialized history publication is required before concurrent fetching. Retain.
Step 3 environment acceptance: foreground timings include process/pipes closing while refresh is slow, which can expose false nonblocking-launch assumptions. Retain.
Branch/planning approval gates preserve predecessor cycle and keep this follow-up unimplemented pending approval. Retain.
Redundant/unnecessary instructions
No supported findings.
Inapplicable instructions
Forum UI/theme and read-model schema checks do not apply to this CLI follow-up.
Uncertain assessments
One-page target is exceeded by seven six-field stages and required lifecycle/risk/study records. Kept stage boundaries and approval scope explicit; runtime helper implementation remains outside this plan.
2026-10-23T14:59:57+00:00 — Step 4 completed handoff
Necessary/useful instructions
step4_implementation_do.md, Stage Boundary Protocol: seven stage commits each carry applicable tests/summary before dependent work; source-history and lifecycle checks precede concurrent workers. Retain.step4_implementation_after.md, Contract/environment evidence: 60 foreground timing samples measure complete process/output return with slow/offline/locked work, not just cache parsing; terminal replay covers fresh preview/apply recovery. Retain.RAILSPIKE.md, debug/study records: preserves initial timing run and missing numeric estimates separately from successful runtime evidence and pending maintainer acceptance. Retain.
Redundant/unnecessary instructions
No supported findings.
Inapplicable instructions
Browser/theme/navigation and read-model schema checks are inapplicable to this terminal-only follow-up. No actual IntelliJ UI, service installation or live-clone mutation was part of automated acceptance.
Uncertain assessments
The one-page planning target conflicts with lifecycle/concurrency safety detail, stage fields and study metadata; implementation benefited from explicit ownership and failure acceptance contracts. This does not establish that every retained planning paragraph is necessary.
Final stage 995f3809b; planning db8ea0009; eight commits through final stage meet seven-stage minimum. PHP focused harness 20/20 with 53 real-Git cases, final 60 timing samples all under 1s (35–81ms, warm median 51ms), syntax/diff/source-hash/plan links passed. Initial successful performance run retained separately; no failed sample discarded. Actual IntelliJ interaction/full project suite remain unverified. No main merge, push, live update or accepted-count increment. Final summary/ledger carry retrospective limitations; working tree clean after this log-only handoff commit.