vanehub-ai: Skill for Claude Code

.claude/skills/openspec-update-change/SKILL.md

openspec-update-change is a skill for Claude Code from cdavid817/vanehub-ai. It costs 55 tokens per session (1,550 once invoked), scanned A, a copy of openspec-update-change, Apache-2.0.

A workflow step for revising the planning documents of an OpenSpec software change while keeping them consistent with one another.

In plain words
What is it for?
Use it to update a change's plan and documents after requirements or decisions change. It does not edit code.
Why use it?
It prevents new decisions from leaving the change plan contradictory or outdated.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

This is cdavid817/vanehub-ai's own configuration. It tells Claude Code how to work on vanehub-ai itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything vanehub-ai configures →

Reuse

Borrowing it

Nothing to install: this file belongs to cdavid817/vanehub-ai. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/cdavid817/vanehub-ai/main/.claude/skills/openspec-update-change/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/cdavid817/vanehub-ai

Made for: Claude Code.

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-update-change

README.md
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Your own site
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Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

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Your own site · 80×15
<a href="https://agentmods.dev/skills/cdavid817/vanehub-ai/openspec-update-change"><img src="https://agentmods.dev/badge/skills/cdavid817/vanehub-ai/openspec-update-change.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,550 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 89% 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 $0.00055 $0.01550
Opus 5 $0.00028 $0.00775
Sonnet 5 $0.00011 $0.00310
Haiku 4.5 $0.00006 $0.00155

Measured 9d ago against content hash 00f5cccbecd6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

openspec-update-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 9d ago.

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

89% identical to openspec-update-change — 23 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-update-change/SKILL.md · 92 lines

How it starts

The opening of the file, as written. The whole thing — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Revise a change's existing planning artifacts and keep them coherent. Never edit code.

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, 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.

/opsx:continue is an expanded-profile workflow and may not be installed. Before suggesting it anywhere below, verify that it is available. If it is unavailable, openspec status --change "<name>" --json shows the next artifact and openspec instructions "<artifact-id>" --change "<name>" --json explains how to create it.

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 sorted by most recently modified, and ask the user to select one

    When prompting, present the top 3-4 most recently modified changes as options, showing:

    • Change name
    • Schema (from schema field if present, otherwise "spec-driven")
    • Status (e.g., "0/5 tasks", "complete", "no tasks")
    • How recently it was modified (from lastModified field)

    Mark the most recently modified change as "(Recommended)" since it's likely what the user wants to update.

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

  2. Get the change's artifacts

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

    Parse the JSON to understand current state. The response includes:

    • schemaName: The workflow schema being used (e.g., "spec-driven")
    • artifacts: Array of artifacts with their status ("done", "skipped", "ready", "blocked")
    • isPlanningComplete: Boolean indicating if all planning artifacts are complete. Older CLI versions expose the same value as isComplete.
    • planningHome, changeRoot, artifactPaths, and actionContext: path and scope context. Use these instead of assuming repo-local paths.

    The artifact ids and paths come from the active schema - do NOT assume them, and do NOT branch on hardcoded artifact names. Custom schemas must work unchanged.

    The files to edit are artifactPaths.<id>.existingOutputPaths - the concrete files that exist on disk, already glob-expanded for glob artifacts (e.g. specs/**/*.md). Do NOT write to resolvedOutputPath: for a glob artifact it is still the glob pattern, not a real file.

  3. Understand the request

    • If the user asked for a specific revision ("the design now uses X"), that is the starting edit.
    • If they only said "update" / "make this coherent", treat it as a coherence review: read the existing artifacts and check them against each other for contradictions, gaps, and duplication.
  4. Read and reconcile

    • Read the artifact(s) the request touches and the change's other existing artifacts.
    • Apply the requested edit. Then check every other existing artifact against it - in ANY direction: an edit to a later artifact may require revising an earlier one, not only the other way around. Build order is a useful reading order, not a constraint on which artifacts may be revised.
    • Note everything that is now inconsistent, missing, or contradictory.
    • Revise only files that already exist (existingOutputPaths). Do NOT create artifacts that don't exist yet, and do NOT invent new files under a glob artifact - note them and point the user to /opsx:continue to create them.
    • If the change is already coherent, say so and make no edits.

Read the full file on GitHub · 92 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. 9d ago First seen · 92 lines · 55 tokens per session scan A 00f5cccbecd6

Subscribe to this mod's changes

openspec-update-change is a skill published in the GitHub repository cdavid817/vanehub-ai (116 stars, last pushed today), licensed Apache-2.0. It adds 55 tokens to every session and 1,550 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 89% identical to openspec-update-change, differing in 23 lines, and is treated as a copy.

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