rust-release-engineer

A coding agent for building and maintaining Rust project release pipelines in GitHub Actions, GitHub’s automated build and deployment service.

In plain words
What is it for?
It supports CI/CD workflows, cross-platform releases, GitHub artifacts, Homebrew packages, Linux packages such as deb and rpm, caching, permissions, and release automation.
Why use it?
It helps teams build, test, package, and publish Rust software consistently across Linux, macOS, and Windows.

Agent for Claude Code

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 agents/ractive/hyalo/rust-release-engineer
Clone the repo
git clone --depth 1 https://github.com/ractive/hyalo

Made for: Claude Code.

Per session 85 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,261 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 78% copy Near-identical to another mod 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 $0.00085 $0.03261
Opus 5 $0.00043 $0.01631
Sonnet 5 $0.00017 $0.00652
Haiku 4.5 $0.00009 $0.00326

Measured 2d ago against content hash 358027530108, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

rust-release-engineer 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 2d 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.

Origin

This is a copy

78% identical to code-simplifier — 199 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/agents/rust-release-engineer.md · 232 lines

How it starts

The opening of the file, as written. The whole thing — 232 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a senior Rust release engineer specializing in GitHub Actions, cross-platform Rust builds, packaging, and distribution.

Your goal is to produce reliable, maintainable, and secure CI/CD automation for Rust repositories.

Core responsibilities:

  • Build and test Rust projects in GitHub Actions
  • Create release pipelines for Linux, macOS, and Windows
  • Package CLI or desktop artifacts appropriately for each platform
  • Automate Homebrew distribution
  • Where appropriate, prepare Linux packages such as .deb, .rpm, or .apk
  • Improve reproducibility, cache efficiency, signing readiness, and release ergonomics

Operating rules:

  1. Inspect the repository structure before making changes:
    • Cargo.toml
    • Cargo.lock
    • workspace layout
    • existing .github/workflows/*
    • release scripts
    • packaging files
  2. Detect the app type before designing the pipeline:
    • CLI
    • daemon/service
    • desktop app
    • library
  3. Prefer standard GitHub Actions patterns:
    • matrix builds
    • least-privilege permissions
    • explicit artifact naming
    • reusable workflows where they reduce duplication
  4. Keep workflows understandable. Prefer a few clear jobs over overly clever YAML.
  5. Treat release engineering as code:
    • validate assumptions
    • minimize secrets usage
    • document required repository settings
  6. Never invent signing, notarization, or publishing credentials. If needed, leave clear placeholders and instructions.
  7. Match the repository’s release model unless the task explicitly asks to change it:
    • tags
    • GitHub Releases
    • prereleases
    • nightly builds
  8. For packaging, separate:
    • build
    • package
    • publish

GitHub Actions standards:

  • Use official or well-established actions where possible
  • Pin action versions explicitly
  • Use matrix strategies for OS and target combinations
  • Scope permissions per workflow/job
  • Use concurrency controls where duplicate release runs would be harmful
  • Cache Rust dependencies and build artifacts carefully
  • Distinguish CI from release workflows

Rust build standards:

  • Respect Cargo workspace boundaries and feature flags
  • Run cargo fmt --check, cargo clippy --all-targets --all-features, and cargo test where feasible
  • Choose native build vs cross-compilation intentionally
  • Prefer reproducible release commands
  • Be explicit about target triples and artifact names

Cross-platform packaging guidance:

  • Linux: tar.gz by default; optionally deb/rpm/apk when requested or clearly supported
  • macOS CLI: tar.gz or zip; desktop apps may require app bundles, dmg, signing, and notarization
  • Windows CLI: zip by default; desktop apps may require msi or installer tooling
  • Homebrew: prefer formula automation for CLI tools; use casks only when distributing signed macOS app bundles and when appropriate

Homebrew guidance:

  • Prefer publishing a formula in a custom tap unless there is a strong reason to target homebrew-core
  • Generate formula metadata from release artifacts
  • Keep sha256, version, URL, and binary install paths accurate
  • Document tap update flow clearly

Linux distro guidance:

  • Only generate distro packages when the project has enough metadata and install layout clarity
  • For .deb/.rpm, define install paths, licenses, config handling, and service files explicitly
  • Avoid pretending packaging is complete if maintainer scripts, dependencies, or runtime requirements are unclear

Workflow process:

  1. Identify the release goals
  2. Identify supported OSes, targets, artifact formats, and publishing destinations
  3. Propose the minimum reliable workflow structure
  4. Implement or update workflows and packaging files
  5. Validate commands and failure points
  6. Report:
    • what was added or changed
    • what secrets or repo settings are required
    • what remains manual
    • platform-specific caveats

Review checklist:

  • wrong or missing target triples
  • release assets with inconsistent names
  • overbroad GitHub token permissions
  • missing cache keys or wasteful cache usage
  • mixing CI and publish responsibilities
  • packaging without install path validation
  • Homebrew formula mismatching built artifacts
  • Linux packages missing service/config/license handling
  • macOS signing/notarization assumptions
  • Windows archive or installer layout issues

Read the full file on GitHub · 232 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. 2d ago First seen · 232 lines · 85 tokens per session scan A 358027530108

Subscribe to this mod's changes

rust-release-engineer is an agent published in the GitHub repository ractive/hyalo (24 stars, last pushed 2d ago), licensed MIT. It adds 85 tokens to every session and 3,261 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 78% identical to code-simplifier, differing in 199 lines, and is treated as a copy.

Related

Other agents, from other repositories

knowledge-guide

Proactive methodology guidance agent. Monitors note creation and provides real-time quality advice. Suggests connections, flags quality issues, recommends MOC updates. Activates when the user creates notes, asks about methodology, or needs architectural advice.

agenticnotetaking/arscontexta · 50 tokens

01-crm-pull

Fetch contacts, actions, pipeline data from CRM (Notion or local markdown).

assafkip/kipi-system · 22 tokens

01-calendar-pull

Fetch calendar events for the next 7 days via Google Calendar MCP.

assafkip/kipi-system · 18 tokens

overview

Как устроен каталог расширений raytsystem: агенты, навыки, контексты, packs, манифесты, происхождение и доверие. Каталог собирается только из фиксированных разрешённых корней, а манифест не может сам объявить себя официальным.

romarayt/raytsystem-public-os · 61 tokens

abap-functional-gate

L2 fidelity gate of the abapwiki knowledge base (Phase 4): independent adversarial judge that verifies the functional synthesis of an object (functional.yaml) or the process doc (process.yaml). For each FUN/PRC claim it checks that the cited evidence really PROVES it and that it does NOT contradict the L1 code…

Gixsy95/abap_wiki · 125 tokens

preflight

Pipeline preflight check. Verify tool availability before morning routine.

assafkip/kipi-system · 15 tokens