openspec-verify-change

openspec-verify-change is a skill for Claude Code, Codex from tatargabor/set-copilot. It costs 32 tokens per session (1,730 once invoked), scanned A, a copy of openspec-verify-change, MIT.

An implementation checker for OpenSpec change records, including specifications, task lists, and design notes.

In plain words
What is it for?
Use it to review whether a completed feature or fix matches its recorded requirements and is ready to close.
Why use it?
It helps find missing, incorrect, or inconsistent work before a change is archived.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/tatargabor/set-copilot/openspec-verify-change
Any agent
npx skills add tatargabor/set-copilot --skill openspec-verify-change
Clone the repo
git clone --depth 1 https://github.com/tatargabor/set-copilot

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for openspec-verify-change

README.md
[![agentmods](https://agentmods.dev/badge/skills/tatargabor/set-copilot/openspec-verify-change.svg)](https://agentmods.dev/skills/tatargabor/set-copilot/openspec-verify-change)
Your own site
<a href="https://agentmods.dev/skills/tatargabor/set-copilot/openspec-verify-change"><img src="https://agentmods.dev/badge/skills/tatargabor/set-copilot/openspec-verify-change.svg" alt="Measured on agentmods" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,730 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 98% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00032 $0.01730
Opus 5 $0.00016 $0.00865
Sonnet 5 $0.00006 $0.00346
Haiku 4.5 $0.00003 $0.00173

Measured today against content hash 23dab6434746, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

openspec-verify-change scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

98% identical to openspec-verify-change — 3 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills/openspec-verify-change/SKILL.md · 176 lines

How it starts

The opening of the file, as written. The whole thing — 176 lines — stays where its author put it; the contents beside it link to each section on GitHub.

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"

Read the full file on GitHub · 176 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. today First seen · 176 lines · 32 tokens per session scan A 23dab6434746

Subscribe to this mod's changes

openspec-verify-change is a skill published in the GitHub repository tatargabor/set-copilot (2 stars, last pushed 13d ago), licensed MIT. It adds 32 tokens to every session and 1,730 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 98% identical to openspec-verify-change, differing in 3 lines, and is treated as a copy.

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