docs(roadmap): condense Phase 5 section to match earlier phases' style

[chrisjz]

Summary

• Phase 5 finished last month but its roadmap section had ballooned into 13 dense table rows with 200-400-word "Status" cells each.
• Earlier phases (Phase 3 in particular) use a tighter pattern: short tracker, brief Results sub-section with bullet points + key findings, pointers to logbooks for detail.
• This PR condenses Phase 5 to match. 42% prose reduction (2325 → 1346 words); load-bearing detail pushed into the per-milestone logbooks.

Changes

Tracker table:

• Rows compressed from 200-400-word paragraphs to 30-50-word summaries, each ending with a logbook link.
• Verdicts, headline numbers, and diagnosis framing preserved verbatim; iteration-arc detail and per-sub-pilot mechanics pushed into the per-milestone logbooks.
• Rows reordered to true milestone sequence (M0 → M1 → M2 → M3 → M4 → M5 → M6 → M6.9+ → M6.13 → M7 → M4.7 → M8). M1 moved from row 7 to row 3 for readability.

New "Phase 5 Results (May 2026)" sub-section:

• Mirrors Phase 3's pattern (Implementation completed / Key findings / Deferred to later phases).
• Provides the at-a-glance overview the verbose tracker was crowding out.

Exit Criteria:

• De-duplicated — single trailing pointer to logbook 021 § M8.2 instead of two inline references.

Preserved verbatim:

• "How to orient" paragraph (load-bearing onboarding for new contributors).
• Research-questions pointer.
• Deliverables list (scoping decisions, not results — already concise).
• Quantum Note + Go/No-Go.

Information-loss audit

Independent quality review spot-checked the most-compressed rows (M4, M5, M6, M6.9+, M6.13). All preserve:

• Verdict (STOP / GO / framework-shipped)
• Headline number (e.g. M5's +0.017 to +0.024 lag vs target ≤−0.05; M6.9+'s −49pp delta)
• Diagnosis framing (substrate-constraint, architecture-asymmetry, substrate-shape mismatch)
• Cited papers where load-bearing (Fernando 2018, Chiu 2024, Resendez Prado 2026)

Pushed into logbooks: M4.5→M4.6 iteration arc detail, the four audit findings (A/B/C/D specifics in M6), Spearman=1.000 specifics, best single-seed X4 reproduction failure, M6.9+ PR-B pre-registration nuance.

Test plan

• All 10 referenced logbooks (012-021) exist at `docs/experiments/logbooks/`; titles match tracker rows (spot-checked 4)
• Pre-commit clean (mdformat, markdownlint, tests)
• Internal links preserved (openspec/changes/phase5-tracking/{tasks,proposal}.md)
• Independent quality review: "Ship. Tone match good, no critical scientific claim lost, Results sub-section reads as a natural sibling of Phase 3's."

🤖 Generated with Claude Code

Summary by CodeRabbit

• Documentation
  • Updated Phase 5 roadmap with condensed milestone descriptions (M-1–M8)
  • Restructured Phase 5 Results section and deferred items entries
  • Revised Phase 5 Exit Criteria wording

[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 6455ff9e-7cd9-4b03-88fa-4a6b10c7ed96

📥 Commits

Reviewing files that changed from the base of the PR and between 04e76d9 and 3d48e04.

📒 Files selected for processing (1)

• docs/roadmap.md

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📝 Walkthrough

Walkthrough

Phase 5 roadmap documentation is updated with a condensed milestone tracker consolidating descriptions for M-1 through M8, updated phase results and deferred items, and refined exit criteria language clarifying Baldwin demonstration outcomes, co-evolution caveat framing, and transgenerational memory findings.

Changes

Phase 5 Roadmap Update

Layer / File(s)	Summary
Phase 5 milestone tracker and exit criteria refinement docs/roadmap.md	Phase 5 milestone tracker rewritten with condensed descriptions for M-1, M0, M1–M8, restructured M4–M7 entries, and updated results/deferred items explaining what was implemented and what deferred to later phases. Phase 5 exit criteria bullets refined with adjusted phrasing for Baldwin/Lamarckian demonstration, co-evolution arms race caveat, and transgenerational memory functional caveat.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• SyntheticBrains/nematode#170: Updates Phase 5 exit-criteria language including "MET WITH CAVEAT" phrasing for co-evolution and transgenerational memory outcomes.
• SyntheticBrains/nematode#143: Modifies Phase 5 milestone tracker and exit-gate wording, including M5/M6 framing and related milestone table entries.
• SyntheticBrains/nematode#172: Updates Phase 5 milestone tracker and exit-criteria wording in the same roadmap sections.

Poem

🐰 Milestones marching through Phase Five's gate,
From M-one to M-eight, condensed and great,
Exit criteria clarified with care,
May 2026's wisdom laid bare!
Roadmap refined—onward we share. 🗺️

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The PR title clearly and concisely describes the main change: condensing the Phase 5 section in the roadmap documentation to match the style of earlier phases, which aligns directly with the primary objective of the changeset.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch cleanup/condense-roadmap-phase5

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[codecov]

Codecov Report

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