shipjaw-upgrade

shipjaw-upgrade is a skill for Claude Code from XyDisorder/shipjaw. It costs 125 tokens per session (1,087 once invoked), scanned A, original, MIT.

A maintenance tool that updates an existing Shipjaw app's documentation and project rules to match a newer installed version.

In plain words
What is it for?
Checking version changes, applying required documentation updates, refreshing agent rules, and recording the current setup.
Why use it?
It prevents old project instructions from drifting away from the tools and practices currently in use.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter. Also seen: mentions AGENTS.md; mentions Cursor.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is ../shipjaw-build/scripts/changelog-since-stamp.sh <project-root>.

Good fit Checking version changes, applying required documentation updates, refreshing agent rules, and recording the current setup.

Compare 6 skills from other repositories ↓
Install

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.

Clone the repo
git clone --depth 1 https://github.com/XyDisorder/shipjaw
agentmods
npx agentmods add skills/xydisorder/shipjaw/shipjaw-upgrade

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 shipjaw-upgrade

README.md
[![agentmods](https://agentmods.dev/badge/skills/xydisorder/shipjaw/shipjaw-upgrade/github.svg)](https://agentmods.dev/skills/xydisorder/shipjaw/shipjaw-upgrade)
Your own site
<a href="https://agentmods.dev/skills/xydisorder/shipjaw/shipjaw-upgrade"><img src="https://agentmods.dev/badge/skills/xydisorder/shipjaw/shipjaw-upgrade/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.

agentmods 80×15 button for shipjaw-upgrade

Your own site · 80×15
<a href="https://agentmods.dev/skills/xydisorder/shipjaw/shipjaw-upgrade"><img src="https://agentmods.dev/badge/skills/xydisorder/shipjaw/shipjaw-upgrade.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 125 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,087 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 original No closer match found 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 $0.00125 $0.01087
Opus 5 $0.00063 $0.00544
Sonnet 5 $0.00025 $0.00217
Haiku 4.5 $0.00013 $0.00109

Measured 11d ago against content hash a6ad1e6cb50c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

shipjaw-upgrade 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 11d 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.

.claude/skills/shipjaw-upgrade/SKILL.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

shipjaw-upgrade

Upgrade only. Bring docs + continuation contract in line with the current Shipjaw skill VERSION. Does not re-scaffold the app and does not implement product features.

After upgrade → /shipjaw-ask for product work or converge-arch slices.

Principles: ../shipjaw-build/references/skill-principles.md (on conflict only). Migration table: ../shipjaw-build/references/migration.md. VERSION: ../shipjaw-build/VERSION. Delta script: ../shipjaw-build/scripts/changelog-since-stamp.sh.

Anti-triggers

  • No app / empty folder → /shipjaw then prompt/build
  • App with code but no documentation/knowledge-base/shipjaw-adopt first
  • Feature/fix request → shipjaw-ask
  • Vague product idea → shipjaw-prompt
  • Want a new Next app → shipjaw-build in a new folder

Checklist

- [ ] Confirm KB exists (else hand off adopt)
- [ ] Run changelog-since-stamp.sh → narrate delta to user
- [ ] Read VERSION + architecture scaffolded-with / adopted-with
- [ ] Apply migration.md gaps relevant to that delta (idempotent)
- [ ] copy-continuation-contract.sh (refresh AGENTS/rule if missing/stale)
- [ ] stamp-provenance.sh (refresh scaffolded-with to current VERSION)
- [ ] Ensure handoff.md exists (template); don’t invent a fake next task
- [ ] validate-docs.sh
- [ ] validate-docs-drift.sh (dangling refs + staleness since last KB touch)
- [ ] Update changelog + handoff; stop

Workflow

1. Detect + show delta

Require documentation/knowledge-base/ + preferably INDEX.md. If missing → stop; recommend /shipjaw-adopt.

../shipjaw-build/scripts/changelog-since-stamp.sh <project-root>

Narrate from-stamp → installed VERSION and the bullet list of skill changes since the stamp (what matters for this project). If already current, say so and stop unless the user still wants a contract refresh.

2. Apply migration gaps

Follow ../shipjaw-build/references/migration.md era-specific upgrades for everything that still applies (INDEX banner, AGENTS/rule, docs committed, practice-gaps section, etc.). Prefer gaps implied by the changelog delta. Idempotent: don’t overwrite custom content with blank templates.

Read the full file on GitHub · 104 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. 11d ago First seen · 104 lines · 125 tokens per session scan A a6ad1e6cb50c

Subscribe to this mod's changes

shipjaw-upgrade is a skill published in the GitHub repository XyDisorder/shipjaw (2 stars, last pushed 4d ago), licensed MIT. It adds 125 tokens to every session and 1,087 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.