agentpack: Skill for Codex

.codex/skills/agentpack-dev/SKILL.md

agentpack-dev is a skill for Codex from liqiongyu/agentpack. It costs 19 tokens per session (242 once invoked), scanned A, original, MIT.

Development instructions for contributing to Agentpack itself, including its specifications, change proposals, release workflow, and Rust checks.

In plain words
What is it for?
Use them when changing Agentpack’s implementation, command-line JSON behavior, error codes, specifications, tests, or release records.
Why use it?
They guide contributors through the project’s required process instead of relying on undocumented conventions. This helps changes match the project contract and pass its verification steps.

Skill for Codex

Written for Codex: installed under .codex/. Also seen: mentions AGENTS.md.

This is liqiongyu/agentpack's own configuration. It tells Codex how to work on agentpack 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 agentpack configures →

Reuse

Borrowing it

Nothing to install: this file belongs to liqiongyu/agentpack. 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/liqiongyu/agentpack/main/.codex/skills/agentpack-dev/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/liqiongyu/agentpack

Made for: Codex.

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 agentpack-dev

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/liqiongyu/agentpack/agentpack-dev"><img src="https://agentmods.dev/badge/skills/liqiongyu/agentpack/agentpack-dev.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 242 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 $0.00019 $0.00242
Opus 5.5 $0.00008 $0.00097
Sonnet 5.5 $0.00004 $0.00048
Haiku 4.5 $0.00002 $0.00024

Measured 1mo ago against content hash 99df11d8952e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agentpack-dev 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 1mo 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.

.codex/skills/agentpack-dev/SKILL.md · 25 lines

What it actually says

agentpack-dev

This skill is for developing the agentpack repo (not for operating agentpack on another project).

Canonical docs (read first)

  • docs/CODEX_EXEC_PLAN.md (AI-first execution roadmap)
  • docs/SPEC.md (authoritative implementation contract)
  • docs/JSON_API.md + docs/ERROR_CODES.md (--json contract + stable error codes)

Spec-driven workflow (OpenSpec)

  • Read: openspec/AGENTS.md and openspec/project.md
  • Create proposal: openspec/changes/<change-id>/ (verb-led kebab-case)
  • Validate: openspec validate <change-id> --strict --no-interactive
  • After merge: archive via openspec archive <change-id> --yes (separate PR)

Local verification

  • cargo fmt --all -- --check
  • cargo clippy --all-targets --all-features -- -D warnings
  • cargo test --all --locked
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. 1mo ago First seen · 25 lines · 19 tokens per session scan A 99df11d8952e

Subscribe to this mod's changes

agentpack-dev is a skill published in the GitHub repository liqiongyu/agentpack (18 stars, last pushed 7mo ago), licensed MIT. It adds 19 tokens to every session and 242 once invoked, about $0.0001 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 2026-08-30.

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