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msd-core/gsd-core/references/scout-codebase.md
Tom Boucher 3a3b2135c2 chore(#1073): purge phantom pre-migration issue refs from source, tests, docs (#1471)
#2551/#3182/#2361 are pre-migration get-shit-done-redux issue numbers with no
equivalent in open-gsd/gsd-core; they mislead triage and manufacture phantom
blockers. Repoint to real successors (#717 byte-budget rework, #720) or rewrite
as prose referencing the discuss-phase/modes progressive-disclosure split.
Correct co-located 'line budget'/'<500 lines' framing to the byte-based reality
(#717). Add a CI guard (tests/no-phantom-issue-refs.test.cjs) that fails if a
phantom ref is reintroduced. SSH-key patterns (id_ed25519) left untouched.
No user-facing runtime behavior change.

Closes #1073
2026-06-20 13:36:57 -04:00

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Codebase scout — map selection table

Lazy-loaded reference for the scout_codebase step in workflows/discuss-phase.md (extracted via the discuss-phase/modes progressive-disclosure split, #717). Read this only when prior .planning/codebase/*.md maps exist and the workflow needs to pick which 2–3 to load.

Read 2–3 maps based on inferred phase type. Do NOT read all seven — that inflates context without improving discussion quality.

Phase type (infer from title + ROADMAP entry) Read these maps
UI / frontend / styling / design CONVENTIONS.md, STRUCTURE.md, STACK.md
Backend / API / service / data model STACK.md, ARCHITECTURE.md, INTEGRATIONS.md
Integration / third-party / provider STACK.md, INTEGRATIONS.md, ARCHITECTURE.md
Infrastructure / DevOps / CI / deploy STACK.md, ARCHITECTURE.md, INTEGRATIONS.md
Testing / QA / coverage TESTING.md, CONVENTIONS.md, STRUCTURE.md
Documentation / content CONVENTIONS.md, STRUCTURE.md
Mixed / unclear STACK.md, ARCHITECTURE.md, CONVENTIONS.md

Read CONCERNS.md only if the phase explicitly addresses known concerns or security issues.

Single-read rule

Read each map file in a single Read call. Do not read the same file at two different offsets — split reads break prompt-cache reuse and cost more than a single full read.

No-maps fallback

If .planning/codebase/*.md does not exist:

  1. Extract key terms from the phase goal (e.g., "feed" → "post", "card", "list"; "auth" → "login", "session", "token")
  2. grep -rlE "{term1}|{term2}" src/ app/ --include="*.ts" ... (use -E for extended regex so the | alternation works on both GNU grep and BSD grep / macOS), and ls the conventional component/hook/util dirs
  3. Read the 3–5 most relevant files

Output (internal <codebase_context>)

From the scan, identify:

  • Reusable assets — components, hooks, utilities usable in this phase
  • Established patterns — state management, styling, data fetching
  • Integration points — routes, nav, providers where new code connects
  • Creative options — approaches the architecture enables or constrains

Used in analyze_phase and present_gray_areas. NOT written to a file — session-only.