Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/stefan-stepzero/shipkitnpx agentmods add skills/stefan-stepzero/shipkit/shipkit-updateWrote 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.
[](https://agentmods.dev/skills/stefan-stepzero/shipkit/shipkit-update)<a href="https://agentmods.dev/skills/stefan-stepzero/shipkit/shipkit-update"><img src="https://agentmods.dev/badge/skills/stefan-stepzero/shipkit/shipkit-update/github.svg" alt="Measured on agentmods" height="20"></a>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.
<a href="https://agentmods.dev/skills/stefan-stepzero/shipkit/shipkit-update"><img src="https://agentmods.dev/badge/skills/stefan-stepzero/shipkit/shipkit-update.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00031 | $0.06279 |
| Opus 5.5 | $0.00012 | $0.02512 |
| Sonnet 5.5 | $0.00006 | $0.01256 |
| Haiku 4.5 | $0.00003 | $0.00628 |
Grade A, and why
shipkit-update scanned grade A with 1 finding 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 1mo 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -sL https://raw.githubusercontent.com/stefan-stepzero/shipkit/main/installers/install.py -o /tmp/shipkit-install.py How it starts
The opening of the file, as written. The whole thing — 725 lines — stays where its author put it; the contents beside it link to each section on GitHub.
shipkit-update - Install & Update Shipkit
Purpose: One skill to install Shipkit fresh or update an existing installation. Archives previous versions safely and intelligently merges user content.
Role: Bootstrap/update skill. Can be fetched directly from GitHub even before Shipkit is installed.
Why This Skill Exists
Updates are tricky without version tracking and safe migration.
This skill provides:
- Detection - Finds all Shipkit variants (current + legacy naming)
- Safe archiving - Never deletes, always preserves
- Clean install - Fresh framework files from source
- Intelligent merge - Claude merges user content into new structure
When to Invoke
User-invoked:
- "Install Shipkit" / "Update Shipkit" / "Upgrade Shipkit"
/shipkit-update(explicit)- "Reinstall Shipkit from GitHub"
Bootstrap scenario:
- User pastes GitHub link + "install this"
- Claude fetches this skill directly and executes
Prerequisites
For installation:
- Access to GitHub (WebFetch or gh CLI)
- Write access to project root
For update:
- Existing Shipkit installation (any version)
Process
Completion Tracking (MANDATORY)
After getting user permission (Step 0), create tasks for every remaining step:
TaskCreate: "Detect existing installation"TaskCreate: "Archive existing installation + write MANIFEST.md"TaskCreate: "Run npx installer"TaskCreate: "Merge CLAUDE.md (+ subfolder CLAUDE.md files)"TaskCreate: "Merge settings.json"TaskCreate: "Scan settings.local.json for stale refs"TaskCreate: "Migrate user content from archive"TaskCreate: "Cleanup deprecated .md files"TaskCreate: "Output comprehensive summary"
Rules:
TaskUpdateeach task tocompletedonly after the step is fully done- The installer completing (Step 3) is NOT the finish line — 5 more steps remain
- Do NOT present the final summary until ALL tasks show completed
- The CLAUDE.md merge task includes subfolder CLAUDE.md files, not just root
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.
- 1mo ago First seen · 725 lines · 31 tokens per session scan A cc5c8d04e594
shipkit-update is a skill published in the GitHub repository stefan-stepzero/shipkit (1 stars, last pushed 3mo ago), licensed MIT. It adds 31 tokens to every session and 6,279 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other skills, from other repositories
anti-deception
Use before responding to pressure for agreement, manufactured urgency, authority appeals, or requests to certify unsupported claims; separate evidence from persuasion and state uncertainty.
stuck
Diagnoses a broken course setup by reading the folder, so the student never has to describe the problem in English. Takes no argument. Reports which class they are on and which files are filled, then names one blocker and one fix: Claude Code opened at the wrong level, .claude/skills/ missing, skills not loading…
wrap-up
Saves today's work session as a four-line entry (did, decided, open, next) at the top of the project's log.md, after the student confirms it, so a fresh chat can continue tomorrow with /pick-up. Writes to projects/ /log.md or career-vault/log.md, one entry per project touched, never to new-client. Use when the student…
pick-up
Reads the newest entry of a project's log.md and tells the student where they left off: what they did and decided, what is open, and the next step. Takes an optional project name. With several projects and no name, shows a menu of each project's last entry. Read only. Use when the student says pick up, where did I…
grill-me
One move you can run on anything: point grill-me at a target and it makes you defend your thinking from first principles until the true matter is clear. Point it at your working contract and it rewrites the weak lines in place. Point it at a brief and it produces a Requirements Handshake. Point it at research, an…
information-architecture
Map the user journey first, then derive the screen inventory, navigation and hierarchy from it, flagging any screen that serves no journey step. Writes the four-part markdown plus an HTML diagram of the step-to-screen mapping. Use after the brief is settled and before tokens or UI.