oss-launch

oss-launch is a skill for Claude Code from mgiovani/cc-arsenal. It costs 218 tokens per session (2,451 once invoked), scanned A, original, MIT.

A staged workflow for releasing a private side project as a public GitHub repository. It checks the code, license, secrets, branding, README, mentions, and repository history before making it public.

In plain words
What is it for?
Running release checks, reviewing findings, creating optional logo or hero art, improving the README and repository description, removing approved mentions, and performing a controlled public release.
Why use it?
It reduces the chance of exposing credentials, unfinished security issues, missing legal information, or private material when publishing a project.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions subagents; names the TodoWrite tool; mentions Claude Code.

Part of the cc-arsenal plugin — 53 skills shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/mgiovani/cc-arsenal/oss-launch
Any agent
npx skills add mgiovani/cc-arsenal --skill oss-launch
Clone the repo
git clone --depth 1 https://github.com/mgiovani/cc-arsenal

Made for: Claude Code.

Or install cc-arsenal, the plugin that ships this one along with the rest of its 53 skills.

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 oss-launch

README.md
[![agentmods](https://agentmods.dev/badge/skills/mgiovani/cc-arsenal/oss-launch.svg)](https://agentmods.dev/skills/mgiovani/cc-arsenal/oss-launch)
Your own site
<a href="https://agentmods.dev/skills/mgiovani/cc-arsenal/oss-launch"><img src="https://agentmods.dev/badge/skills/mgiovani/cc-arsenal/oss-launch.svg" alt="Measured on agentmods" height="20"></a>
Per session 218 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,451 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00218 $0.02451
Opus 5 $0.00109 $0.01226
Sonnet 5 $0.00044 $0.00490
Haiku 4.5 $0.00022 $0.00245

Measured 6d ago against content hash 53e16ddfddd0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

oss-launch 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 6d 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.

skills/oss-launch/SKILL.md · 127 lines

How it starts

The opening of the file, as written. The whole thing — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.

OSS Launch

Take a private side project from "done" to a public GitHub launch in seven staged gates: pre-flight, review, brand, README, mention scrub, history rewrite (optional, hard-gated), public flip. Like ship, every stage reports the real command it ran and the run stops at the first gate that isn't met: never estimate a result, never skip a gate silently.

Track progress with TodoWrite (one line per stage) so the user sees where the launch train is if a gate stops it.

The stages

# Stage Gate
1 Pre-flight Repo is private; no leaked secrets; a license exists
2 Review No unresolved Critical/High findings
3 Brand (optional) logo/hero generated or reused
4 README + description Value-prop-first README, topics set
5 Mention scrub User confirms exactly what gets removed
6 History rewrite Private only, ever-public check, explicit confirmation this turn
7 Public flip Every earlier stage passed

Stage 1: Pre-flight

  • gh repo view --json isPrivate,licenseInfo,forkCount,stargazerCount -q .: record isPrivate; this is the launch's core assumption and Stage 6 rechecks it independently.
  • Secrets scan: run the same check env-setup's Phase 6 does, grep tracked files and .env/git history for key/secret/password/token patterns (see that skill's scan-patterns.md reference if you need the full pattern set). Any hit stops the whole train: report the finding as file:line only, never the matched value, and go no further.
  • License: check for LICENSE/LICENSE.md/COPYING at the repo root. Missing license is not an auto-fill, ask the user which license they want (MIT, Apache-2.0, etc.) before continuing; don't pick one for them.

Stage 2: Review

Invoke the review-code skill (via Skill, or a Task/Exploresonnet subagent if that's unavailable) against the default branch. Any Critical/High finding stops the train: report it and let the user decide (fix and re-run, or explicitly accept the risk). Medium/Low findings are reported but don't block.

Read the full file on GitHub · 127 lines

Files

What ships with it

5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 6d ago First seen · 127 lines · 218 tokens per session scan A 53e16ddfddd0

Subscribe to this mod's changes

oss-launch is a skill published in the GitHub repository mgiovani/cc-arsenal (7 stars, last pushed 6d ago), licensed MIT. It adds 218 tokens to every session and 2,451 once invoked, about $0.0011 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.

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