ship
Run the pre-launch checklist via parallel fan-out to specialist personas, then synthesize a go/no-go decision
Install / Use
npx skills add addyosmani/agent-skillsInstalls into whichever agent you are using.
Claude Commands
Claude Code slash commands
Quality Score
Category
Development & EngineeringSupported Platforms
Tags
Our assessment of ship
ship scores 87/100 on our quality scale, 389th of 1,751 Development & Engineering skills we index (top 23%).
Its Claude Commands is 4.5 KB long, well organised into 10 sections with 1 code example: a solid amount of guidance for an agent.
With 98,817 GitHub stars, it is one of the more widely adopted skills in the catalogue.
Maintenance, license and trust
- The repository was last updated 2 days ago, so ship is actively maintained.
- It is released under the MIT license, a permissive license that allows use, modification and commercial use with attribution.
- Its trust signals score 100/100, with no cautions. These come from repository metadata, not a code audit — read the skill file before letting an agent act on it.
ship compared with similar skills
All 4 of these similar skills score higher than ship; compare them before choosing.
| Skill | Score | Stars | Updated | Format |
|---|---|---|---|---|
| ship (this skill)by addyosmani | 87 | 98.8k | 2d ago | Claude Commands |
| claude-memby thedotmack | 100 | 94.7k | today | CLAUDE.md |
| Agent-Reachby Panniantong | 100 | 85.4k | 9d ago | CLAUDE.md |
| Understand-Anythingby Egonex-AI | 100 | 84.1k | 13d ago | CLAUDE.md |
| headroomby headroomlabs-ai | 100 | 73.8k | today | CLAUDE.md |
Frequently asked questions
- How do I install ship?
- Run
npx skills add addyosmani/agent-skills. The install tabs above show the steps for each supported agent. - Which AI agents does ship work with?
- It is written for Claude Code, as a Claude Commands file. Other agents that read the same format can often use it too.
- Is ship safe to use?
- It is MIT-licensed and scores 100/100 on trust signals. Skills are instructions an agent will follow, so read the file before installing it and do not approve commands you do not understand.
- Is ship still maintained?
- The repository was last updated 2 days ago, so ship is actively maintained.
Skill content
View source on GitHubdescription: Run the pre-launch checklist via parallel fan-out to specialist personas, then synthesize a go/no-go decision
Invoke the agent-skills:shipping-and-launch skill.
/ship is a fan-out orchestrator. It runs three specialist personas in parallel against the current change, then merges their reports into a single go/no-go decision with a rollback plan. The personas operate independently — no shared state, no ordering — which is what makes parallel execution safe and useful here.
Phase A — Parallel fan-out
Spawn three subagents concurrently using the Agent tool. Issue all three Agent tool calls in a single assistant turn so they execute in parallel — sequential calls defeat the purpose of this command.
In Claude Code, each call passes subagent_type matching the persona's name field:
code-reviewer— Run a five-axis review (correctness, readability, architecture, security, performance) on the staged changes or recent commits. Output the standard review template.security-auditor— Run a vulnerability and threat-model pass. Check OWASP Top 10, secrets handling, auth/authz, dependency CVEs. Output the standard audit report.test-engineer— Analyze test coverage for the change. Identify gaps in happy path, edge cases, error paths, and concurrency scenarios. Output the standard coverage analysis.
In other harnesses without an Agent tool, invoke each persona's system prompt sequentially and treat their outputs as if returned in parallel — the merge phase still works.
Constraints (from Claude Code's subagent model):
- Subagents cannot spawn other subagents — do not let one persona delegate to another.
- Each subagent gets its own context window and returns only its report to this main session.
- If you need teammates that talk to each other instead of just reporting back, use Claude Code Agent Teams and reference these personas as teammate types (see
references/orchestration-patterns.md).
Persona resolution. If you've defined your own code-reviewer, security-auditor, or test-engineer in .claude/agents/ or ~/.claude/agents/, those take precedence over this plugin's versions — /ship picks up your customizations automatically. This is intentional: plugin subagents sit at the bottom of Claude Code's scope priority table, so user-level definitions win by design.
Phase B — Merge in main context
Once all three reports are back, the main agent (not a sub-persona) synthesizes them:
- Code Quality — Aggregate Critical/Important findings from
code-reviewerand any failing tests, lint, or build output. Resolve duplicates between reviewers. - Security — Promote any Critical/High
security-auditorfindings to launch blockers. Cross-reference withcode-reviewer's security axis. - Performance — Pull from
code-reviewer's performance axis; cross-check Core Web Vitals if applicable. - Accessibility — Verify keyboard nav, screen reader support, contrast (not covered by the three personas — handle directly here, or invoke the accessibility checklist).
- Infrastructure — Env vars, migrations, monitoring, feature flags. Verify directly.
- Documentation — README, ADRs, changelog. Verify directly.
Phase C — Decision and rollback
Produce a single output:
## Ship Decision: GO | NO-GO
### Blockers (must fix before ship)
- [Source persona: Critical finding + file:line]
### Recommended fixes (should fix before ship)
- [Source persona: Important finding + file:line]
### Acknowledged risks (shipping anyway)
- [Risk + mitigation]
### Rollback plan
- Trigger conditions: [what signals would prompt rollback]
- Rollback procedure: [exact steps]
- Recovery time objective: [target]
### Specialist reports (full)
- [code-reviewer report]
- [security-auditor report]
- [test-engineer report]
Rules
- The three Phase A personas run in parallel — never sequentially.
- Personas do not call each other. The main agent merges in Phase B.
- The rollback plan is mandatory before any GO decision.
- If any persona returns a Critical finding, the default verdict is NO-GO unless the user explicitly accepts the risk.
- Skip the fan-out only if all of the following are true: the change touches 2 files or fewer, the diff is under 50 lines, and it does not touch auth, payments, data access, or config/env. Otherwise, default to fan-out.
/shipis designed for production-bound changes — when the blast radius is non-trivial, run the parallel review even if the diff looks small.
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Languages
Trust signals
From repository metadata: license, adoption, age and documentation. Not a code audit — see the Safety scan above for what the skill file itself contains.
