Markdown renderer extension — Railspike diagnostics

Step 1 — 2026-10-21 10:03:12 UTC

Debug mode: enabled from the host root marker for this new cycle. No effort-study selection.

Necessary/useful instructions

• step1_solution_assessment.md, alternatives and recommendation: compared broad compatibility with measured, reviewed extensions while keeping the actual scope conditional on predecessor evidence. Retain.

• RAILSPIKE.md, Enhancement Requests and approval gates: created the explicitly requested separate assessment, recorded deferral and returned to removal without starting later steps. Retain.

Redundant/unnecessary instructions

No supported findings.

Inapplicable instructions

• Branching, implementation and UI acceptance: this deferred cycle only drafts Step 1. No code or UI changed.

Uncertain assessments

• Counts, rare-syntax decisions and extension size are not available until removal-cycle measurement. Recommendation is provisional; do not invent results or use syntax frequency to waive safety.

Step 1 resumption — 2026-10-23

Debug mode remains enabled. User requested resumed assessment after clone synchronization.

Necessary/useful instructions

• Step 1 evidence/vertical slice: refreshed the committed catalog corpus rather than treating old counts or zero render errors as syntax correctness. Recommended bounded pipe-table reading; deferred broader list parsing. Retain.

• Approval and study contracts: later steps remain unapproved; enrolled existing cycle at this checkpoint, preserving missing intake and exact R1 identity. Retain.

Redundant/unnecessary instructions

No supported findings.

Inapplicable instructions

Implementation branching, runtime modifications and new UI acceptance are not part of this Step 1 handoff. Existing-reader checks validate the synchronized checkout, not proposed table support.

Uncertain assessments

Table boundary complexity needs explicit Step 2 scope; source metrics contain overlapping heuristic candidates. Full metrics remain private with a compact reproducible inventory beside the assessment. No parser or external component was restored.

Study checkpoint — 2026-10-23

Standing enrollment: railspike-effort / v3/markdown_renderer_extension, scope v1 clarified to the proposed table slice, R1/P2, Codex single exposed rater, 2026-10-23. Existing cycle joins at this resumed Step 1; earlier intake scores are missing, not reconstructed. Baseline ad7e8f5fc5570ee5bdcdf08a03b2dfac524c9d83; prior removal work, restored renderer, metrics and calibration scores were inspected before this checkpoint. All three frozen R1 hashes verified; exact feedback recovered from 4f6cfe2b436fae8d939b1349fe724a3879ee0a0e. Projected total 0.65 includes planning, project-owned table parsing, link/security regressions, dynamic/static delivery, mobile/keyboard/theme checks and documentation; above composer decluttering's 0.60 because syntax boundaries add correctness work, below startup recovery's 1.00 because existing delivery and recovery infrastructure is retained. This is total scoped effort judgment, not remaining work or measured labor. No independent rating, implementation, maintainer acceptance or accepted-count increment. Parent removal acceptance remains incomplete.

Step 2 — 2026-10-23

Debug mode remains enabled. User explicitly replied Approved Step 1; drafted only the feature description.

Necessary/useful instructions

• Step 2 boundaries and shared inventory: specified supported table forms, whole-block fallback, canonical renderer/link policy, existing table styles and ordinary dynamic/static reader outcome. Retain.

• Risk-first planning: cell splitting, security and viewport access require early evidence before dependent implementation; semantic source counts alone are insufficient. Retain.

• Dependency-consent policy: zero external additions/upgrades/copied source proposed; Step approval would not authorize a later dependency change. Retain.

Redundant/unnecessary instructions

No supported findings.

Inapplicable instructions

Step 4 branch/commit cadence and rendered UI acceptance do not apply to this planning-only handoff. No implementation, new tests or runtime verification claimed.

Uncertain assessments

Optional outer pipes and inline-code pipe boundaries need representative/adversarial validation in Step 3's first stage. If the agreed forms cannot be supported safely within the slice, revise scope before implementation rather than silently dropping support.

Study checkpoint

railspike-effort / v3/markdown_renderer_extension, v1 clarified, R1/P2, Codex single exposed rater; baseline ad7e8f5fc5570ee5bdcdf08a03b2dfac524c9d83 unchanged. Existing Step 1 total 0.65 reaffirmed for table parsing, reader delivery, safe links, source fallback, phone/keyboard/themes, copied publication/recovery and documentation. Canonical renderer/controller, CSS and runbook inspected; existing table scrolling/focus styles reduce presentation work while malformed/escaped/code-pipe boundaries retain the correctness risk already included. R1 report/diff hashes and exact feedback at 4f6cfe2b436fae8d939b1349fe724a3879ee0a0e reverified. Prior checkpoints preserved; missing intake not reconstructed. No independent rating, measured labor, retrospective completion score, implementation, deployment or maintainer acceptance; parent removal outcome remains incomplete and accepted count unchanged.

Step 3 — 2026-10-23

Debug mode remains enabled. User explicitly replied Approved Step 2; no new scope requests. Before/Do/After instructions read in order; five-stage plan drafted, no implementation or commits.

Necessary/useful instructions

• Step 3 Completion Contract and Key Risks: tied parser boundaries to ordinary reader links, phone access and real copied-package publication/recovery. Retain.

• Stage sizing/dependencies: separated basic recognition, adversarial boundaries, accessible presentation, publication recovery and corpus/theme acceptance; committed verification gates precede dependent work. Retain.

• Planning-commit allowance: explicitly keeps metrics and substantive ledger updates for authorized stage commits; initial commit remains approved plans/debug log plus necessary organization/reference fixes. Retain.

Redundant/unnecessary instructions

No supported findings.

Inapplicable instructions

No schema, navigation destination, new dependency, named-device failure or external deployment change is proposed. No implementation tests/UI acceptance apply to this planning handoff. Existing CSS inspection confirms reuse, not rendered acceptance.

Uncertain assessments

The requested one-page layout competes with six required fields across five stages and explicit risk/recovery coverage; kept fields compact, prioritizing executable verification gates. Stage sizes are prospective judgments, not measured effort; split oversized work before starting it and reapprove changed scope. All 66 measured documents need classification; candidate counts do not guarantee all pipe forms qualify.

Study checkpoint

railspike-effort / v3/markdown_renderer_extension, scope v1 clarified, R1/P2, Codex single exposed rater; baseline ad7e8f5fc5570ee5bdcdf08a03b2dfac524c9d83 retained. 0.65 total reaffirmed, including completed planning and remaining five-stage parsing/safety, accessibility, copied full/shared publication/failure recovery, corpus/theme review and documentation. Existing table/focus CSS and canonical dynamic/static path reduce delivery uncertainty; boundary and corpus risks remain included. Reverified R1 report/diff hashes and exact historical feedback from 4f6cfe2b436fae8d939b1349fe724a3879ee0a0e. Prior checkpoints retained, no reconstructed intake or independent rating. Five planned/zero completed implementation stages; no measured labor, retrospective outcome score, implementation/deployment, maintainer acceptance or accepted-count increment. Parent removal acceptance remains incomplete.

Step 4 complete — 2026-10-23T10:37:06.215722+00:00

Debug mode: enabled, inherited unchanged from Step 3. Approved Step 3 executed on feature/markdown-renderer-tables; planning 073fb5f6a, stages ec3155f37, 2eecbf33e, 2a3e27046, 483ec05bb, 2207dddaf. Five planned/five completed stages; technical local outcome complete, deployment/full suite/physical devices and maintainer acceptance pending.

Necessary/useful instructions

• Step 4 Before planning gate/organization: isolated the approved plans/log from implementation, metrics and substantive ledger content; preserved earlier removal audit and recovery work. Retain.

• Step 4 Do stage boundaries: each of five stages has verification, summary and separate commit before dependent work. Boundary and semantic-link tests preceded browser/publication work. Retain.

• CONTRIBUTING rendered verification: screenshot review caught a real long-code column squeeze missed by overflow-only assertions; corrected width/word breaking and added readable-dimension checks, then reran the matrix. Retain.

• Completion Contract and study closeout: actual copied full/shared publication, 503 injection, retained active release and restoration/retry prevent a direct-render-only completion claim. Corpus source comparison found deliberate nested fallback and headerless orphan rows; recorded them rather than inflating supported-document totals. Preserve projected 0.65 separately from retrospective 0.70 and pending maintainer acceptance. Retain.

Redundant/unnecessary instructions

No supported findings. Full inventory/static verification takes several minutes but provides coverage beyond the fast renderer tests; its duration alone does not justify removing it.

Inapplicable instructions

No schema/navigation destination changes, new dependencies, production activation, external publication or recovery-storage disposal. No UI copy cleanup; accessible region labels support keyboard users without visible explanatory text. Full-suite and physical-device checks were not claimed.

Uncertain assessments and corrections

• New test classes require explicit runner registration: an initial command ran only existing tests; registered the class and confirmed each new method executed before the Stage 2 commit.

• Initial stale source-label assertion failed as expected after supported-table rendering; updated the behavior assertion, preserved code-byte checks and reran all reader tests.

• One-page planning limits compete with mandatory fields/risk coverage; the approved plan favored explicit verification boundaries. No workflow rule changed.

• Structural classification is complete for all 66 measured documents, visual review is representative. Other table/inline syntaxes and future source changes may need separate review.

No new enhancement request, scope split, reference revision, independent rating, measured labor or accepted outcome. Final study entries are in the summary and host ledger; parent historical-removal acceptance remains incomplete.