mxspec

name	mxSpec
description	Use when the user says "/spec", "/mxSpec", "write a spec", "write a specification", "requirements doc", "acceptance criteria", "define requirements", or needs to specify a feature or component before planning or implementation. Creates or updates specifications via MCP-Tools in the mxLore knowledge DB; tracks acceptance criteria with auto-archive on full completion.
allowed-tools	Read, Write, Edit, Grep, Glob

Output Format ⚡

FIRST line of every response = ### REPORT ### EXACTLY. Position 0. Nothing before.

Read ~/.claude/skills/_shared/reasoning-leak-rule.md.

/mxSpec — Create/Update Specification (AI-Steno: !=forbidden →=use ⚡=critical ?=ask)

Spec-Agent. Creates/updates specifications in Knowledge-DB via MCP.

Verification ⚡

!invent structural facts. Verify via Grep/Read/mx_search BEFORE writing — 6 targets:

• Class names | Method/function names | File paths | i18n namespaces | AC/test counts | Plan/ADR/doc IDs

Verification fails -> drop the claim, or tag inline **unverified:** <reason>. See references/verification-examples.md for per-target Grep/Glob commands and rationale.

Init

1. CLAUDE.md→**Slug:**=project-param. ∅slug→?user
2. mx_ping()→OK=MCP-mode | Error=Local(docs/specs/SPEC-<slug>.md+Warning→/mxMigrateToDb)

Input

Slug from command argument. ∅arg→?user.

⚡ Slug normalization:

1. Lowercase, replace [^a-z0-9-] with -, collapse + strip outer -. Then truncate to 100 chars at a - boundary, strip trailing -. Verify ^[a-z0-9-]+$.
2. If normalized slug differs from input → show both and confirm with user.

Workflow

0) PRD Context

• Full brainstorming in session → derive PRD from chat, no follow-up questions.
• Otherwise (partial / no brainstorming, PRD-gaps): delegate to superpowers:brainstorming skill, then return here.
• Updating existing spec → skip Phase 0 entirely.

0b) Supersedes-FR Body-Load ⚡

When input lists supersedes: / consolidates: / merges: (case-insensitive):

1. Parse the supersedes-list (FR#NNNN, [FR-NNNN], Spec#NNNN, [SPEC-slug]).
2. mx_detail(doc_id, max_content_tokens=1500) for each merged doc body.
3. Embed ## Konsens (aus supersedeten FRs) section in the new spec — one bullet per merged doc with Goal/target extract.
4. Conflicts → explicit ## Decision block (fires Section 3b auto-suggest) OR ## Open Questions entry. Never silently pick one body's answer.
5. In Section 2, add mx_add_relation(..., relation_type='supersedes') per merged FR (alongside references edges).
6. Out-of-scope: Section 3 Update path (supersedes is CREATE-time-only).

1) Check existence

⚡ mx_search(project, doc_type='spec', query='<slug>', status='active', include_content=false, limit=5) — MUST pass status='active' or an archived spec with the same slug will hijack the Update path and mutate historical records.

For each result, verify the slug field matches the normalized input EXACTLY (mx_search uses full-text, so foo can match foo-v2). Only an exact-slug active hit goes to Update (step 3) with that doc_id; ∅exact match → New (step 2).

2) New Spec

Template → ~/.claude/skills/mxSpec/assets/spec-template.md (9 sections: Overview, Related, Goals, Non-goals, Requirements, Acceptance Criteria, Interfaces/Data, Edge Cases, Open Questions — plus title/meta lines). ⚡ Absolute path — the subagent CWD is the project root, not the skill dir, so a relative assets/… read silently fails. If the template file is unreadable, fall back to a minimal inline skeleton (Overview + Requirements + Acceptance Criteria) and warn the user.

⚡ Title clamp: server ClampTitle=255. Keep titles short.

MCP: mx_create_doc(project, doc_type='spec', title='SPEC: <Title>', content) — ⚡ Slug is auto-generated server-side from the title; the slug= param does not exist on mx_create_doc and is silently ignored. Server handles dedup via ClampSlug + retry-with-suffix (see references/bug-history.md).

Related handling (iterate, do not stop at first):

1. Parse the Related section for ALL referenced ADRs + plans. Canonical bracket form: [ADR-NNNN], [PLAN-slug]. Reject ambiguous formats like ADR#123 — warn and skip.
2. For each → mx_search(project, doc_type='decision,plan', query='<id-or-slug>', status='active', limit=3) to resolve target_id.
3. For each resolved target → mx_add_relation(source_doc_id=<new spec doc_id>, target_doc_id=<target doc_id>, relation_type='references'). ⚡ source = new spec, target = ADR/plan; never reverse. Server dedupes.
4. Loop until all Related items processed.

Local (Fallback): ensure docs/specs/ exists (mkdir -p docs/specs); if index.md is absent create it with a minimal header, otherwise APPEND the new entry to the existing index (never overwrite). Write docs/specs/SPEC-<slug>.md + warning. ⚡ This fallback violates the ADR-0004 "local docs/ = only CLAUDE.md+status.md" rule — only used when MCP is unavailable; re-sync via /mxMigrateToDb once MCP is back.

3) Update Spec

MCP: mx_detail(doc_id, max_content_tokens=0) → modify only the target section(s) → update Last Modified to today in UTC (YYYY-MM-DD) → mx_update_doc(doc_id, content, change_reason).

⚡ max_content_tokens=0 is REQUIRED for updates — the 600-token default is for queries; using it on edits silently truncates and round-trips data loss.

⚡ Preserve all headers and existing sections; edit in place. Editing rules:

• Add a requirement / AC: append a new numbered line under ## Requirements or a new - [ ] under ## Acceptance Criteria; do NOT replace the whole section.
• Complete an AC: flip - [ ] to - [x] (or - [X]); do NOT remove the line.
• Remove an obsolete AC: annotate as - [x] ~~original text~~ (dropped) rather than deleting the line. The strike-through preserves audit history. ⚡ Dropped AC do NOT count toward M or N — they are excluded from the status-transition totals (see step 4). Do NOT delete AC lines silently.
• Resolve an Open Question: prepend [resolved] (case-insensitive — [Resolved], [RESOLVED], [done], [DONE] all accepted) and the resolution text; keep the original line. The status-transition check matches any of these prefixes as resolved.

⚡ Server clamp limits: title=255, slug=100, change_reason=500. Long values past the limit are silently truncated. See references/bug-history.md.

Local: Read → Edit → "Last Modified" to today → index update if status changed.

3b) Decision-Marker Detection + Auto-Suggest /mxDecision

After body-validation passes BUT BEFORE the final mx_create_doc/mx_update_doc call, scan the spec body for inline Decision-Markers that should live as separate ADRs.

Read ~/.claude/skills/_shared/decision-marker.md for the canonical regex + fence-exclusion algorithm.

If len(markers) == 0 → skip prompt, proceed to mx_create_doc/mx_update_doc.

If len(markers) > 0 → emit ONE batched prompt at end of Create/Update event (not per-marker spam):

Detected N decision-marker(s) in spec body. Persist as separate /mxDecision (ADR)? (y / n / skip-once / show)

Branches:

• y → invoke /mxDecision via Skill-Tool with pre-filled args: marker-line + 2 lines context above + 2 lines below + parent_spec=<spec_id>. /mxDecision returns decision_id. THEN:
  1. mx_add_relation(source_doc_id=spec_id, target_doc_id=decision_id, relation_type='references') — BROAD-SKIP idempotency: skip if ANY source→target relation exists between this spec_id and decision_id, regardless of relation_type (handles user-manual supersedes/implements links without creating duplicate edge).
  2. mx_remove_tags(spec_id, ['unbacked-decision']) if tag present (stale-tag closure). Idempotent — re-run on already-untagged spec is no-op. On failure: log warning, continue.

  /mxDecision-abort: skip relation+tag-clear, leave spec untouched

• n → mx_add_tags(spec_id, ['unbacked-decision']). Idempotent — re-run on already-tagged spec → no duplicate.
• skip-once → no tag, no relation, no prompt. Event-scoped only — next Create/Update re-evaluates from scratch.
• show → display all detected markers with line numbers, then re-prompt with same 4 choices.

Multiple markers → list all in single batched prompt with line refs, accept user's single-choice answer for the batch.

4) Status Transition (on update)

AC counting: Count - [ ] / - [x] lines under ## Acceptance Criteria. Skip fenced code blocks. Exclude ~~text~~ (dropped) lines. M = total live, N = checked. If M == 0: skip transition (output Spec has no acceptance criteria yet). Status whitelist: only active auto-transitions.

• Open Questions: unresolved if line does NOT match case-insensitive ^\s*\[(resolved|done)\].
• M > 0 AND N == M AND no unresolved Open Questions AND status == active → add **Status:** implemented, call mx_update_doc(doc_id, content, status='archived', change_reason='All AC fulfilled'), output Spec #<doc_id> archived — all Acceptance Criteria fulfilled. ⚡ If any AC is (dropped), warn Auto-archive skipped — spec has <K> dropped AC. Confirm intent before archiving. and only archive after user confirmation.
• Mixed (N < M): info only <N>/<M> AC fulfilled. No change.
• Open Questions unresolved: no archive even if AC complete. Note AC complete but open questions remain.
• ⚡ Doubt → leave open + ?user.

Rules

• ⚡ Only verified knowledge from chat !invent. ∅info→?user or Open Question
• ⚡ Related: mx_search verify BEFORE mx_add_relation
• !invented metrics in AC. !implementation details→/mxPlan
• Requirements numbered. AC clearly testable !vague
• MCP preferred, local=fallback

Completion

Output (max 20 lines, truncate aggressively):

1. doc_id
2. Top 3-5 Acceptance Criteria (truncate each to 60 chars)
3. Up to 3 relations if created (show target title + doc_id only)
4. Recommendations:
   • /mxDesignChecker for a spec review pass (catches gaps + inconsistencies before implementation)
   • /mxDecision if an ADR is needed for an architectural choice surfaced by the spec
   • /mxPlan <slug> to derive an implementation plan from the spec
5. If active workflow → name next step

If more AC or relations exist than shown, append ... and N more (see mx_detail <doc_id>).