P0009 (accept + execute): DOLCHEO+H anti-pattern callout in dolcheo-vocabulary

[klappy]

What this PR does

Combined acceptance + execution of promotion P0009 — the explicit anti-pattern callout for the malformed string DOLCHEO+H.

Acceptance (1 file, +5/-7)

• docs/promotions/P0009-dolcheo-not-dolcheo-plus-h-anti-pattern.md
  • promotion_status: proposed → accepted
  • Tags array "proposed" → "accepted"
  • Status section header → accepted (2026-05-05)
  • Review Notes filled with operator decision

Execution (1 file, +21/-0)

• canon/definitions/dolcheo-vocabulary.md
  • New section ## Anti-Pattern — Do Not Write "DOLCHEO+H" inserted between ## Discoverability and ## See Also
  • Three-bullet rationale (doubled H, OLDC+H residue, propagation mechanism)
  • Sub-section for handling older artifacts that contain the malformed form
  • Receipts citing the propagation source (PTXprint PR Add Anti-Cache Lying constraint and content-addressed storage implementation #30 ledger) and the 2026-05-03 slate-authoring session

Why P0009 first

This is the first of 8 stuck proposed promotions sitting behind P0002's just-merged chain (PRs #163 → #165 → #166). Triage order:

1. P0009 ← this PR — operator-stated frustration ("resurfacing every conversation"); smallest possible execution surface
2. P0001 — oldest backlog item; foundational completion-claims-require-artifacts
3. P0008 — fresh-validator DOLCHEO ledger convention (affects current release-validation-gate workflow)
4. P0007 — DoD as agent-observable behaviors
5. P0006 — vodka boundary enumeration
6. P0003 — reframe-before-trimming method
7. P0004 — docs-proxy canon-as-tool pattern
8. P0005 — async-by-default-for-long-running-tools principle

Combined-PR note

P0002 separated acceptance (PR #165) from execution (PR #166). This PR combines them to halve review burden across the 8-proposal backlog. If you'd rather have them split (matching P0002's pattern exactly), say so and I'll re-do the remaining 7 as paired PRs.

DoD

• Proposal frontmatter promotion_status flipped to accepted
• Review Notes block filled with reviewer / decision / date / notes
• Canon edit text matches the proposed language in P0009 §"Proposed Language" verbatim
• Insertion point matches the proposed section position ("near the end, before ## See Also")
• No other canon docs touched

Verification after merge

oddkit_search for "DOLCHEO+H" should surface this new anti-pattern section ahead of the OLDC+H legacy doc and any older ledger references.

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Note

Low Risk
Low risk documentation-only change that clarifies correct DOLCHEO terminology and updates a promotion record; no runtime or workflow logic is modified.

Overview
Adds an explicit anti-pattern section to canon/definitions/dolcheo-vocabulary.md stating that DOLCHEO+H is malformed, explaining why it appears (legacy OLDC+H residue) and how to treat/correct older artifacts, with receipts.

Updates promotion P0009 to accepted by flipping frontmatter (tags, promotion_status), marking status/date, and filling in review notes to record the acceptance decision.

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[github-actions]

Canon Quality — oddkit_audit ✅

No dead klappy:// references or legacy link patterns found in writings/. 39 files scanned.

_{Spec: klappy://docs/oddkit/specs/oddkit-audit · Workflow: .github/workflows/canon-quality.yml · Run: #38}