brew-publish

A workflow for updating a Homebrew tap, which is a package source used by the Homebrew command-line installer, for a prebuilt Socket CLI.

In plain words
What is it for?
Use it to prepare or apply a formula version bump after a GitHub release, using the release's checksums file for verification.
Why use it?
It helps publish an exact released binary with a verified checksum instead of rebuilding the software from source.

Skill for Claude CodeCodex

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/socketdev/sauce/brew-publish
Any agent
npx skills add SocketDev/sauce --skill brew-publish
Clone the repo
git clone --depth 1 https://github.com/SocketDev/sauce

Made for: Claude Code, Codex.

Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 809 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 $0.00061 $0.00809
Opus 5 $0.00030 $0.00404
Sonnet 5 $0.00012 $0.00162
Haiku 4.5 $0.00006 $0.00081

Measured yesterday against content hash 812f5961eff0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

brew-publish 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 yesterday.

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/socket-release/brew-publish/SKILL.md · 78 lines

How it starts

The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Homebrew tap (binary-download formula)

Model: no bottles, no source build - the formula downloads the release's prebuilt per-platform tarballs by EXACT releases/download/v<version>/<asset> URL (never latest) and pins the sha256 the release's own checksums.txt vouched for. brew-publish NEVER hashes an asset itself; the manifest is the authority.

Tap layout (one-time, manual)

The tap repo (SocketDev/homebrew-socket) carries an unsharded Formula/ dir plus a README documenting tap trust:

export HOMEBREW_REQUIRE_TAP_TRUST=1
brew trust SocketDev/socket

The exact layout is modeled by release-kit/examples/brew-cli/tap-fixture/ in sauce. Creating the tap repo is a human act (repo creation rights) - note it plainly; there is no script.

Bump cycle

Prerequisite: the release is CUT - tag on origin, release published (not draft), all four platform assets uploaded, checksums.txt attached (the github-release flow produces all of this).

node scripts/socket-release/brew-publish.mts --tag vX.Y.Z            # dry-run plan
node scripts/socket-release/brew-publish.mts --tag vX.Y.Z --apply    # commit the bump

The tool refuses, in order, with exit 1 and zero writes: a tag not on origin (it never creates tags), a draft/missing release, a missing templated asset, a missing/incomplete checksums.txt. An identical formula is a no-op ("already reads ", exit 0). --apply commits the formula DIRECT to the tap default branch with a GitHub-signed API commit (never a PR - the version-bump-PR shape is guard-blocked), then re-reads the tap: the committed bytes must parse back to the desired formula, or it exits 1 saved-state-unproven.

From CI, brew-publish.yml runs on release: published (or manual dispatch with tag + publish: true) and mints a per-run App token via the ./.github/actions/socket-release-app-token composite from the org-wide App credentials - org secrets are enterprise-wide; never treat them as missing setup or a human task.

Read the full file on GitHub · 78 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. yesterday First seen · 78 lines · 61 tokens per session scan A 812f5961eff0

Subscribe to this mod's changes

brew-publish is a skill published in the GitHub repository SocketDev/sauce (2 stars, last pushed 5d ago), licensed MIT. It adds 61 tokens to every session and 809 once invoked, about $0.0003 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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