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Repository source: docs/plans/compose_keyboard_fit/compose_keyboard_fit_debug_log.md

compose_keyboard_fit Railspike debug log

2026-11-02T01:15Z — Step 1

Mode: enabled by the project marker .railspike_debug_on (new workflow, no explicit request).

RAILSPIKE.md "Railspike Debug Mode", project default: presence-only marker check resolved the mode without a question.
step1_solution_assessment.md "Structure", Original Query and Understood Intent: forced the forum query and the maintainer's later clarification to be kept verbatim and separate, which is what makes this restart different from the superseded posts.
RAILSPIKE.md "Key Rules", "Prefer shared components/API contracts first": shaped Option B (reuse reply_viewport.js) and the rejection of Option C (a second heuristic).
RAILSPIKE.md "Experimental Effort Estimation", exposure disclosure: code was inspected before rating; the rule made the intake snapshot honest instead of implied-prospective.
Host ledger "Continuing enrollment (P2)": supplied the cycle ID format and the requirement to record a replaced predecessor.
concepts.md "Planning": produced the Concepts touched list; no inventory entries exist for the composer, so they are marked proposed.

RAILSPIKE.md "Step 4 commit cadence" and "Documentation-only scope": read on the way to Step 1 guidance but not actionable at Step 1; a Step 1-only reader could skip them. Suggest keeping the Step Guide pointer and letting the step file own them.
step1_solution_assessment.md restates the handoff/debug/stop sequence that RAILSPIKE.md already specifies; consolidating to one pointer would shorten the file.

One-shot workflow references (one_shot.md), follow-up branch reuse, and Step 4 planning-commit organization: not reached in a staged Step 1.

Whether a forum thread counts as the "first artifact" for enrollment purposes. Treated here as not an artifact (no repository file), so this cycle gets a new ID with the forum cycle recorded as a replaced predecessor. If the host study prefers reusing v3/mobile_compose_keyboard, the ledger row can be relabeled without changing scores.
Attribution: the runtime model is recorded as claude-fable-5-1 from session metadata; reasoning effort is not exposed and is omitted.

Mode: enabled, inherited from Step 1.

step2_feature_description.md "Known user or environment": forced the iPhone SE Firefox entry, failure and evidence to be stated, and made explicit that headless WebKit does not count. This is the item the superseded forum plan handled loosely.
"Shared component inventory" and "Risks": surfaced that the paned New Thread dialog renders the full composer and that the reserved picker footprint exists to prevent layout shift, both of which shape Stage 1.
RAILSPIKE.md "Enhancement Requests": kept the theme overflow and forum-reply items visible as pending without widening scope.
Effort estimation "reaffirm unchanged values": produced an explicit Step 2 snapshot rather than an implied carry-over.

step2_feature_description.md repeats the full documentation-only scope rules for a cycle whose work type is an application change; a one-line pointer would do.
"Guardrails: avoid UI mockups" and "keep lightweight" overlap with the one-page deliverable limit already stated.

Whether "Concepts touched" should list a proposed inventory entry when docs/concepts/ has no composer entry at all. Listed as proposed and included in delivery scope; the Step 4 stage will decide the file.

Mode: enabled, inherited.

step3_development_plan_do.md "include a stage that replays each reported failure": produced Stage 3's device replay and the rule that emulator evidence does not substitute for it.
"Stages about one hour or 50 lines": kept the reorder and the phone styles as separate stages with separate verification instead of one change.
step3_development_plan_before.md "reconcile recorded requests against approved Step 2": restated the two pending requests as separate work before planning.
Extended estimates "stage work not summed": kept S1–S3 annotations beside an independently reaffirmed 0.20.

The three Step 3 files (before/do/after) repeat the debug-state restoration and effort-snapshot instructions three times for one artifact; one statement in do would suffice.
after checklist item 1 ("verify every stage field") duplicates the template in do.

Database change documentation, function signatures, documentation-only boundaries, one-shot transition rules.

Headless WebKit: the test harnesses support REPLY_BROWSER=webkit, but no Playwright browser cache was found in this environment. The plan says "WebKit where installed"; Step 4 must report which engines actually ran.

Mode: enabled, inherited. Links repaired when the plans moved into docs/plans/compose_keyboard_fit/.

step4_implementation_before.md "Planning Docs Commit Gate": the ordered steps (branch, status, organize, commit, verify HEAD, then summary) made the planning commit clean; the ledger stayed out of it as instructed and landed in the final stage commit.
step4_implementation_do.md "Stage Boundary Protocol": one commit per stage with its summary section kept the three stages auditable (439000c06, e27587b9f, 149984ae9).
"Report checks as passed, failed, blocked, pending" and "a focused pass is never a full-suite result": drove the baseline-worktree reproductions of the browser timeouts and the two non-long-standing suite failures instead of hand-waving them.
Step 2 "Known user or environment" carried into Step 4: the device replay is recorded pending rather than satisfied by Chromium.

The effort-estimation paragraphs are repeated almost verbatim across before, do and after; a single pointer to RAILSPIKE.md would do.
after checklist item 3 restates the commit-count rule already stated under "Step 4 commit cadence" in RAILSPIKE.md.

Documentation-only verification items, one-shot transition rules, database and migration guidance, deployment verification (outside scope).

Whether adding a --phone-fit-only switch to an existing test counts as ordinary correction or scope growth. Treated as in-scope verification tooling mirroring the file's existing --shared-only switch and recorded in Stage 2's retrospective.