fold: Skill for Claude Code

.claude/skills/ship/SKILL.md

ship is a skill for Claude Code from fold-run/fold. It costs 74 tokens per session (1,241 once invoked), scanned A, original, Apache-2.0.

A shipping workflow for turning a verified code change into a branch, commit, and pull request. A pull request is a proposed change for review before it is merged into the main codebase.

In plain words
What is it for?
Use it when a change is ready to commit, open as a pull request, or hand over to CI for testing.
Why use it?
It gives changes consistent names and descriptions and requires local checks before a pull request is opened. It also prepares the work for monitoring by continuous integration, the automated build and test system.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is fold-run/fold's own configuration. It tells Claude Code how to work on fold itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything fold configures →

Reuse

Borrowing it

Nothing to install: this file belongs to fold-run/fold. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/fold-run/fold/main/.claude/skills/ship/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/fold-run/fold

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 ship

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/fold-run/fold/ship"><img src="https://agentmods.dev/badge/skills/fold-run/fold/ship.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,241 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 $0.00074 $0.01241
Opus 5.5 $0.00030 $0.00496
Sonnet 5.5 $0.00015 $0.00248
Haiku 4.5 $0.00007 $0.00124

Measured 2mo ago against content hash 17a19943d022, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ship 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 2mo 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/ship/SKILL.md · 114 lines

How it starts

The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Shipping a change in fold

/preflight decides whether a diff is ready. This lands it. /watch-ci triages what CI says back. Every substantive change since #63 has merged through a squashed PR — nothing but a release commit goes straight to main.

1. Gate before branching

Run /preflight first, and do not open a PR on an unverified diff. A red PR costs a round trip; the gate costs a few minutes and runs locally.

2. Branch: type/slug

feat/, fix/, docs/, chore/ — a short hyphenated slug after it. feat/downstream-keepalive, fix/console-sync-weekly-force-push, docs/protocol-era-transition.

The prefix survives even though the title will not have one. The branch name is where the change gets classified; the title is where it gets explained.

3. The title is a prose sentence naming the problem

This is the convention that is easiest to get wrong, because it is the opposite of the usual advice and CONTRIBUTING said otherwise until it was corrected.

A PR title states the defect or the behavior, in a full sentence, with no area: prefix. Real ones:

  • A retry answering an upstream's question arrived looking like a first try
  • Every federated list was announcing a cache scope that does not exist
  • The weekly console bump has been force-pushing a branch it cannot see
  • A client had to be refused before it could learn what to ask for
  • Three things the gateway was letting past it

Not fix: forward MRTR continuation — that is the branch name's job, and it says what the diff does rather than what was wrong.

The test: a reader who knows fold should feel the problem land. A title that describes the change instead of the defect is a changelog line.

Commits that go straight to main keep the area: prefix — release: v1.15.0, docs: repoint the conformance receipt at the v1.14.0 run. Those are housekeeping with no problem to name.

Merges are squashed, so GitHub appends (#N) and the title becomes the commit subject verbatim. Write it to read well in git log.

Read the full file on GitHub · 114 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. 2mo ago First seen · 114 lines · 74 tokens per session scan A 17a19943d022

Subscribe to this mod's changes

ship is a skill published in the GitHub repository fold-run/fold (1 stars, last pushed 12d ago), licensed Apache-2.0. It adds 74 tokens to every session and 1,241 once invoked, about $0.0003 per session on Opus 5.5. 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.

Related

ship compared with skills from other repositories

ship next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
shipfold-run/foldSkill112d agoApache-2.0A74Claude Code
vhs-e2e-gifdimetron/pi-goSkill2223d agoMITA106Claude Code, Codex
check-linters-before-commitdimetron/pi-goSkill2223d agoMITA30Claude Code, Codex
gh-labelsUnique-Divine/jiyuuSkill6yesterdayMITA98Claude Code, Codex
gh-prUnique-Divine/jiyuuSkill6yesterdayMITA63Claude Code, Codex
gh-revUnique-Divine/jiyuuSkill6yesterdayMITA89Claude Code, Codex
gh-ci-watchUnique-Divine/jiyuuSkill6yesterdayMITA74Claude Code, Codex