OpenSpec Skills - Setup Guide¶

Source: fission-ai/openspec (70,706⭐, MIT, active CI) Skill: fission-ai/openspec (15 skills.sh-indexed skills, 42,400 combined installs; 16 SKILL.md files in-repo) Publisher: Fission AI - OpenSpec maintainers Category: Spec-Driven Development / Workflow / Code Quality Quality Tier: 🟡 Authority-justified (70.7K⭐ flagship open-source project, MIT, CI + SECURITY.md; no skills.sh security verdicts published - verified Sep 29, 2026)

OpenSpec is "the most loved spec framework" for AI coding assistants: spec-driven development (SDD) where changes are proposed as machine-readable spec deltas, reviewed against them, then archived. The skills automate the full change lifecycle - propose, apply, verify, archive - plus docs drafting, releases, and onboarding. Ships as Agent Skills-format SKILL.md files in the main repo (skills/ and .agents/skills/); the CLI is @fission-ai/openspec (npm).

Un-parked: flagged "watch for growth" in the Aug 18, 2026 sweep (13 skills, ~8.5K combined). Grown ~5x to 42K combined installs - now guided.

Installation¶

# Skills only (any Agent Skills host, including Hermes Agent)
npx skills add fission-ai/openspec

# Full CLI (required for the native openspec workflow)
npm install -g @fission-ai/openspec

Roster - All 15 Indexed Skills¶

Skill	Installs	Does
openspec-propose	3,321	Propose a new spec-driven change from requirements
openspec-explore	3,321	Explore existing specs and change history
openspec-archive-change	3,308	Archive a completed change into the spec baseline
openspec-apply-change	3,296	Apply/implement an approved change against specs
openspec-update-change	3,244	Update an in-flight change's spec deltas
openspec-sync-specs	3,197	Sync code-level specs with the spec repository
openspec-verify-change	2,890	Verify implementation matches the change's specs
openspec-continue-change	2,860	Resume a paused change
openspec-ff-change	2,846	Fast-forward a change through review
openspec-onboard	2,838	Onboard a new agent/contributor to the SDD workflow
openspec-bulk-archive-change	2,818	Batch-archive completed changes
release-openspec	2,641	Draft release notes from archived changes
draft-openspec-docs	1,966	Draft project docs from specs
write-openspec-docs	1,927	Write spec-derived documentation
verify-openspec-docs	1,927	Verify docs match current specs

(In-repo but not skills.sh-indexed: openspec-new-change.)

CorpusIQ Use Cases¶

Use Case	How
Agent-built features	`openspec-propose` → `apply-change` → `verify-change` gives CorpusIQ spec-reviewable agent output instead of freeform diffs
Docs freshness	`draft/write/verify-openspec-docs` pairs with the docs-site pipeline for spec-derived content
Client delivery	SDD change logs (`release-openspec`) produce client-facing changelogs from archived changes
Multi-agent handoffs	`openspec-onboard` + `sync-specs` standardize context transfer between agent sessions

Integration with CorpusIQ¶

CorpusIQ is the connector layer that lets AI assistants read the systems a business already runs on - accounting, payments, CRM, email, files and analytics - and answer with the source named. It is read-only by design: it retrieves data and never writes to, or acts in, a connected system, which is what makes it safe to point at live accounts.

This page is part of the CorpusIQ directory, the reference we maintain for the MCP server and agent-skill ecosystem. Run alongside CorpusIQ, a third-party server like this one can be combined with a company's own business data in a single answer.

See what CorpusIQ connects

Limitations / Verification¶

Full workflow needs the CLI (npm i -g @fission-ai/openspec); skills alone give the instructions, not the tooling
Skills assume the OpenSpec project structure (specs/ directory conventions)
Verify: npx skills add fission-ai/openspec --list shows 15 skills

Security¶

70.7K⭐, MIT license, active CI, SECURITY.md and MAINTAINERS.md in-repo. No skills.sh security audits published (verified Sep 29, 2026):

Audit	Verdict
Gen Agent Trust Hub	Not published
Socket	Not published
Snyk	Not published

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