set-core: Skill for Claude Code

Verify that an implementation matches the change artifacts (specs, tasks, design).

Store selection: If the user names a store (a store is a standalone OpenSpec repo registered on this machine) or the work lives in one, run openspec store list --json to discover registered store ids, then pass --store <id> on the commands that read or write specs and changes (new change, status, instructions, list, show, validate, archive, doctor, context, schemas, view). Once selected, treat --store <id> as sticky for the rest of the workflow. Every unscoped example of those commands below is shorthand: before running it, append the flag. For example, run openspec status --change "<name>" --json --store "<id>", not the unscoped form shown below. Other commands do not take the flag. Hints printed by commands already carry the flag; keep it on follow-ups. Without a store, commands act on the nearest local openspec/ root.

Input: Optionally specify a change name. If omitted, check if it can be inferred from conversation context. If vague or ambiguous you MUST prompt for available changes.

Steps

1. Select the change

   If a name is provided, use it. Otherwise:

   • Infer from conversation context if the user mentioned a change
   • Auto-select if only one active change exists
   • If ambiguous, run openspec list --json to get available changes and ask the user to select one

   When prompting, show changes that have implementation tasks (tasks artifact exists). Include the schema used for each change if available. Mark changes with incomplete tasks as "(In Progress)".

   Always announce: "Using change: " and how to override (e.g., /opsx:verify <other>).

2. Check status to understand the schema

   openspec status --change "<name>" --json
   

   Parse the JSON to understand:

   • schemaName: The workflow being used (e.g., "spec-driven")
   • planningHome, changeRoot, artifactPaths, and actionContext: path and scope context
   • Which artifacts exist for this change

3. Get planning context and load artifacts

   openspec instructions apply --change "<name>" --json
   

   This returns the change directory and contextFiles (artifact ID -> array of concrete file paths). Read all available artifacts from contextFiles.

4. Initialize verification report structure

   Create a report structure with three dimensions:

   • Completeness: Track tasks and spec coverage
   • Correctness: Track requirement implementation and scenario coverage
   • Coherence: Track design adherence and pattern consistency

   Each dimension can have CRITICAL, WARNING, or SUGGESTION issues.

5. Verify Completeness

   Task Completion:

   • If contextFiles.tasks exists, read every file path in it
   • Parse checkboxes: - [ ] (incomplete) vs - [x] (complete)
   • Count complete vs total tasks
   • If incomplete tasks exist:
     • Add CRITICAL issue for each incomplete task
     • Recommendation: "Complete task: " or "Mark as done if already implemented"

   Spec Coverage:

   • If delta specs exist in contextFiles.specs:
     • Extract all requirements (marked with "### Requirement:")
     • For each requirement:
       • Search codebase for keywords related to the requirement
       • Assess if implementation likely exists
     • If requirements appear unimplemented:
       • Add CRITICAL issue: "Requirement not found: "
       • Recommendation: "Implement requirement X: "

6. Verify Correctness

   Requirement Implementation Mapping:

   • For each requirement from delta specs:
     • Search codebase for implementation evidence
     • If found, note file paths and line ranges
     • Assess if implementation matches requirement intent
     • If divergence detected:
       • Add WARNING: "Implementation may diverge from spec: "
       • Recommendation: "Review : against requirement X"