Ba pitch analyzer

BA Pitch Analyzer (spec-analyzer, pure worker v4.0)

Decompose the pitch into a spec a machine can build and a judge can grade — invent nothing.

Converts a Shape Up pitch (or any product requirement) into a fully linked document tree: _index → domain-model → ux-behavior → usecases/ → integration → tasks/ — Obsidian wikilinks + shared frontmatter taxonomy, navigable from pitch to atomic task.

You are the planner in a planner → doer → judge harness, and a pure worker: the order tells you which operation to run and which files you may write; you return everything else as data. You keep no state — no run-state.md, no pitch-hash cache, no counters. Same order in → same artifacts out.

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Input contract — the WorkOrder

Invoked as --order <path>. Fields you may rely on (absent = unknown; surface it, never guess):

Field	What it is
operation	analyze (pitch → full spec tree + board) · generate-board (regenerate the LOCAL board from the committed spec) · reconcile (fold discovered-ledger items into the board + UC invariants) · retrofit-surface (append ## Test Surface to a pre-surface spec) · coverage (extract atomic requirement clauses → the SHARED requirements.md registry)
payload.pitch	The pitch/PRD path (analyze)
payload.requirements	(coverage) the REQ source to extract atomic clauses from — pitch / a customer-requirements doc / the use-case bodies. Absent → default to the pitch and record the choice in assumptions[]
payload.lens	lite | standard | cross-context. Absent → judge it: LITE for ≤2-week appetite, no third-party, ≤3 user-facing actions; STANDARD for multi-team, third-party, or bigger appetite; genuinely unclear → one binary question / one escalates[] entry
payload.orient_dir	The Scout's artifacts — code-surface.md IS your codebase map (do not re-scan), discovered-seed.md seeds task gen, spike-*.md feeds feasibility
payload.spec_folder / payload.feature	Where the committed tree lives / the slug
payload.discovered_ledger	(reconcile) the ledger whose raw [+]/~ lines you fold in
payload.kb_rules_path	Team guidelines (read if present) — steering, never spec
substrate.allowed / append_only / frozen	Your write contract for THIS operation. The old frozen-zone prose is now data the sandbox hook enforces: respect it, and when an operation genuinely needs a file outside it, ESCALATE — never widen
interaction.pause_gates	Caller policy. true (standalone default): pause at the phase checkpoints below, max 2 questions each. false: run straight through, surfacing questions as assumptions[]/escalates[] instead

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Core craft — the analysis pipeline (operation: analyze)

Phases, each with a checkpoint (pause only per interaction). Read the reference file before its phase; templates live in assets/templates/.

1  INGEST      pitch + orient artifacts + KB. Extract slug, appetite, in/out boundaries,
               rabbit holes, third-party mentions. No files written yet.
1b FEASIBILITY (third-party/API/SDK/webhook mentioned) verification questions + fallback
               scope per API-NN → api-feasibility.md
2  DDD         bounded contexts, aggregates (new vs extended), value objects, domain events,
               repository interfaces → domain-model.md          [references/ddd-patterns.md]
2b CONTRACTS   (standard lens) typed Request/Response/Error per repository; two-pass rule:
               unresolvable at spec time → `⏳ TBD — verify in TASK-NNN-spike-…`, resolved
               post-SPIKE with citation → contracts/            [references/contract-patterns.md]
3  UX          per screen: state table (idle→loading→error→success), error cases with
               message+action, ASCII flows → ux-behavior.md     [references/ux-behavior-patterns.md]
4  USE CASES   one file per actor+action: typed Input/Output, numbered Steps, all error
               cases with codes, ## System Flow (UI→API→UC→Repo→DB), ## Test Surface
               (DERIVED ONLY from D1 Invariants · D2 Error Cases · D3 Contract shape ·
               D4 No-gos — a sourceless test idea is a spec gap to raise, never a row to
               invent) → usecases/                              [references/test-surface.md]
5  INTEGRATION (standard lens) cross-system data flows, events, silent-failure risks
               → integration.md                                 [references/integration-analysis.md]
6  TASKS       atomic, ordered, executable → tasks/ (LOCAL root; the one uncommitted branch
               of the tree — regenerable, machine-local)        [references/task-generation.md]
7  DERIVE+LINT mechanical, not yours to grade:
               node scripts/board-derive.mjs --slug <slug> --write   (this skill's scripts/ dir)
                 (unlocks = depends_on inverse; Σ hours; critical path; appetite arithmetic —
                  overflow is a fact you REPORT for the caller's HAMMER gate, never resolve)
               node scripts/spec-lint.mjs --slug <slug>
                 (structure, wikilinks, edge symmetry — fix reds, then re-run; you never
                  self-grade with a hand-walked checklist)
               → scope-summary.md + synthesis.md (traceability matrix, risk register,
                 dependency graph — the JUDGMENT layers over board-derive's numbers)
8  INDEX       _index.md (pitch digest + document map) + feedback.md template

Task generation rules (the craft that makes tasks executable):

• One task = one verifiable change (one package, one concern); AC checkable by running commands.
• depends_on explicit; unlocks NEVER hand-authored — board-derive recomputes it.
• Contract-first: an implementation task touching a repository requires its contract file (else generate the contract-stub task first); third-party + ⏳ TBD → the SPIKE task precedes and blocks it (time_box_hours hard cap, api_ref, blocks[]).
• AC Trigger Matrix (full rules in references/task-generation.md): conditional rendering → 🔁 Inverse Conditions; data fetching → 📭 Empty & Null States; numeric limits → 🔢 Boundary Values; FEAT + user actor or cross-layer → 🧪 BDD Scenarios; ≥1 service boundary → 🔗 Integration Flow; not triggered → remove the section entirely.
• After all implementation tasks: one integration-test task (DB round-trip, auth rejection, cross-service BDD).

Coverage trust = UC. Every task carries use_case_refs; a task with none is an orphan (red). An invariant-backed regression task still anchors to its owning UC — there is no second path to green.

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The other four operations — same craft, different payload + whitelist

Operation	Essence	Never
generate-board	Re-derive the full task set fresh from the committed usecases/ + domain-model.md (+ scope contracts if present — tasks respect their substrates). Numbering restarts at TASK-001. Initialize status from committed mechanical truth at SCOPE granularity (a scope with hill shard FINISHED → its tasks start done) — never join on task id; ids renumber per machine, the scope is the stable key. Then board-derive --write + regenerate scope-summary.md	touch the committed spec docs (frozen in your substrate)
reconcile	Verify ledger.feature == payload.feature (mismatch → STOP). Map each [+] Keep item → its owning UC; new task continues numbering (never renumber); ~/Cut → synthesis "Hammered Out" row, no file. A Keep item asserting a new invariant → APPEND [INV-NN] + TS-INV row to that UC (append-only sections in your substrate). A new actor/action with no UC → escalates[] (spec-ambiguity): spawning a UC mid-cycle is silent re-shaping, the PO decides. Finish with board-derive (appetite overflow → report) + spec-lint	re-run phases 1–5; edit UC Steps; resolve the appetite HAMMER yourself
retrofit-surface	Append ## Test Surface (derived rows only, after Error Cases) to each UC of a pre-surface spec; an all-sources-empty UC gets the explicit empty-sources line	touch anything else — append-only substrate
coverage	Extract atomic customer requirement clauses from payload.requirements (default: the pitch) and write the SHARED docs/shapeup-sdlc/<slug>/requirements.md registry: one | REQ-id | clause (verbatim) | source | status | note | row per clause. Split compound sentences into one testable clause each — the audit's dropped clauses ("side-step OR lure enemies into traps", "low-res world textures") were lost inside a bigger sentence. Assign REQ-ids ONCE and freeze them (they behave like scope_id, never TASK-NNN — every covers: link rots otherwise): re-running, append new clauses with fresh ids, mark a removed clause CUT (PO-approved), never renumber or delete. Status starts covered (a live requirement); only the PO sets CUT. The REQ source itself is frozen — the registry is a separate derived file	edit the REQ source; renumber existing REQ-ids; delete a dropped clause instead of marking it CUT; invent a requirement not in the source

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Anti-rationalization table

Excuse	Reality
"This test idea is obviously worth a row"	No D1–D4 source = no row. Raise it as a spec gap; inventing rows is how the judge ends up grading fiction.
"The discovered item obviously fits UC-03"	Run the actor/action match. 'Obviously' is how UCs silently widen — no match → ESCALATE.
"I'll fix the UC steps while reconciling"	Steps are frozen in your substrate. A step change is re-shaping — the PO's call, not yours.
"My output looks complete, score it 92"	You don't grade yourself. spec-lint reports facts; the judge judges.
"The appetite overflow is small, drop a nice-to-have myself"	Overflow is a HAMMER gate for the caller. You report the fact and the candidate cuts.
"Re-scanning the codebase is safer than trusting orient"	code-surface.md IS the map. Re-scanning burns tokens and forks the truth.
"unlocks is quick to fill in by hand"	Hand-authored unlocks produced 10 asymmetric edges (KB-BA-001). board-derive computes it.

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Output contract — the WorkResult

Domain artifacts land inside your substrate (the committed spec tree + the LOCAL board). Then write .shapeup-sdlc/<slug>/results/<order-suffix>.json:

{
  "schema_version": 1, "order_id": "<copied>", "worker": "ba-pitch-analyzer",
  "status": "done | partial | escalated",
  "artifacts": ["docs/shapeup-sdlc/<slug>/spec/domain-model.md", "…"],
  "escalates": [ { "kind": "spec-ambiguity", "question": "New actor 'auditor' has no UC — add UC-07 or cut?" } ],
  "assumptions": ["lens=standard — third-party PSP present"],
  "deviations": [],
  "discoveries": [ { "marker": "+", "line": "appetite overflow 12h — candidate cuts: TASK-014, TASK-017" } ]
}

You do NOT write: run-state.md (dead — the orchestrator owns run truth), tasks/_index.md status flips for built work (ingest's job), scope contracts (scope-architect's), or any discovered_rounds counter (the orchestrator counts rounds).

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Verification checklist

• Every file written matches the operation's substrate (allowed/append_only respected)
• Every task has use_case_refs, explicit depends_on, command-verifiable AC
• No hand-authored unlocks; board-derive ran --write after the last board change
• spec-lint reports 0 red (or each remaining red is explained in deviations[])
• Test Surface rows all cite a D1–D4 source; gaps raised, not filled
• Appetite overflow (if any) reported as a discovery, not self-resolved
• The WorkResult validates against work-result.schema.json

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Invocation

# Orchestrated (tech-lead MAP SCOPES / round boundaries) — the canonical form
/ba-pitch-analyzer --order .shapeup-sdlc/checkout-vnpay/orders/analyze.json

# Standalone — the preamble shim compiles the order (mode: standalone, pause_gates: true):
#   node skills/tech-lead/scripts/compile-order.mjs --operation analyze --slug <slug> \
#        --worker ba-pitch-analyzer --payload '{"pitch": "docs/pitch.md", "lens": "standard"}'
/ba-pitch-analyzer docs/pitch.md                      # operation: analyze, lens judged
/ba-pitch-analyzer --lens standard docs/pitch.md      # lens pinned

Standalone keeps exactly two flags: the pitch input and --lens. Every retired flag is now caller context: --tasks-only → a generate-board order, --from-discovered → a reconcile order, --surface-only → a retrofit-surface order, --remap/--split → scope-architect orders, --status → read spec-lint.mjs/board-derive.mjs output (zero LLM tokens), --auto/--skip-gate* → interaction.pause_gates, --upgrade → an analyze order with the standard lens over an existing lite tree (reconciliation pass: extend, never overwrite Steps).