# verify-openspec-docs

> Claude/Codex skill by [@fission-ai](https://omgskills.com/library/fission-ai/index.md) · 72k stars · Updated 2026-10-17

Fact-checks OpenSpec user documentation with a fresh-context subagent that re-runs commands and checks claims against source. Manually triggered; not part of the drafting loop. Use when the user asks to verify, fact-check, or accuracy-check a docs page, section, or set of changed claims.

Tags: ai, context-engineering, engineering, planning, prd, sdd, sdlc, spec, spec-driven-development, specification

## Install

```sh
git clone https://github.com/Fission-AI/OpenSpec /tmp/OpenSpec && ln -s /tmp/OpenSpec/.agents/skills/verify-openspec-docs ~/.claude/skills/verify-openspec-docs
```

## From README

Verify OpenSpec docs Check finished docs prose against reality. The point of a fresh context is that the reviewer hasn't watched the prose get written, so it can't be talked into the author's assumptions. This skill runs only when the user asks for it. Drafting is owned by write-openspec-docs; don't invoke this from inside a drafting session unless the user requests a verification pass. Scope the run Confirm the target: a page, one \#\# section, or a list of changed claims. If invoked without a target, ask. Read the README at the root of the docs tree the target lives in; its invariants and page map are part of what gets checked. One subagent per unit (one \#\# section, or the stated claim list). A full page is several subagents, run in parallel. Spawn the reviewer General-purpose subagent. Subagents don't inherit skills, so the prompt hands the reviewer everything by path.

## Links

- HTML page: https://omgskills.com/skills/fission-ai/openspec/verify-openspec-docs/
- GitHub: https://github.com/Fission-AI/OpenSpec
- Author: [@fission-ai](https://omgskills.com/library/fission-ai/index.md)

## More from this repo

- [draft-openspec-docs](https://omgskills.com/skills/fission-ai/openspec/draft-openspec-docs/index.md) — Collaborative page-drafting mode for the OpenSpec docs.
   - [@fission-ai](https://omgskills.com/library/fission-ai/index.md) · 73k stars
- [openspec-apply-change](https://omgskills.com/skills/fission-ai/openspec/openspec-apply-change/index.md) — Implement tasks from an OpenSpec change.
   - [@fission-ai](https://omgskills.com/library/fission-ai/index.md) · 72k stars
- [openspec-archive-change](https://omgskills.com/skills/fission-ai/openspec/openspec-archive-change/index.md) — Archive a completed OpenSpec change in the experimental workflow.
   - [@fission-ai](https://omgskills.com/library/fission-ai/index.md) · 72k stars