install

install is a skill for Claude Code, Codex from racecraft-lab/racecraft-plugins-public. It costs 54 tokens per session (3,636 once invoked), scanned A, original, MIT.

An installer for the custom agent files that SpecKit Pro expects Codex to use. It copies the bundled TOML configuration files into the Codex agents directory and verifies them.

In plain words
What is it for?
It is for installing, refreshing, repairing, or verifying SpecKit Pro's Codex subagents.
Why use it?
It removes the manual work of copying and checking the required agent definitions. It also tells the user when Codex must be restarted for the agents to load.

Skill for Claude CodeCodex

Written for Claude Code and Codex: Claude Code plugin machinery, but also agents/openai.yaml present. Also seen: reads .claude/ paths; mentions subagents; mentions Claude Code.

Part of the speckit-pro plugin — 11 skills, 13 agents, 3 hooks, 1 MCP server shipped together

Good fit It is for installing, refreshing, repairing, or verifying SpecKit Pro's Codex subagents.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/racecraft-lab/racecraft-plugins-public/install
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.

Any agent
npx skills add racecraft-lab/racecraft-plugins-public --skill install
Clone the repo
git clone --depth 1 https://github.com/racecraft-lab/racecraft-plugins-public

Made for: Claude Code, Codex.

Or install speckit-pro, the plugin that ships this one along with the rest of its 11 skills, 13 agents, 3 hooks, 1 MCP server.

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 install

README.md
[![agentmods](https://agentmods.dev/badge/skills/racecraft-lab/racecraft-plugins-public/install.svg)](https://agentmods.dev/skills/racecraft-lab/racecraft-plugins-public/install)
Your own site
<a href="https://agentmods.dev/skills/racecraft-lab/racecraft-plugins-public/install"><img src="https://agentmods.dev/badge/skills/racecraft-lab/racecraft-plugins-public/install.svg" alt="Measured on agentmods" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,636 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 3 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Rogue Agent · line 134
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
  • medium Excessive Agency · line 200
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
  • medium Excessive Agency · line 203
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
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 $0.00054 $0.03636
Opus 5 $0.00027 $0.01818
Sonnet 5 $0.00011 $0.00727
Haiku 4.5 $0.00005 $0.00364

Measured 3d ago against content hash 96eac5d13235, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

install 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 3d 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.

speckit-pro/codex-skills/install/SKILL.md · 373 lines

How it starts

The opening of the file, as written. The whole thing — 373 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SpecKit Install

Scope

Use this skill when the user wants to install, refresh, repair, or verify the Codex custom subagents that ship with this plugin. This skill exists only for the Codex runtime. It does not manage Claude Code agents, Claude marketplace metadata, or Claude commands.

The bundled source of truth lives in the plugin at:

  • codex-agents/*.toml

The default user-scope Codex destination is:

  • ~/.codex/agents/

If the user explicitly asks for project scope, use .codex/agents/ in the current project. Arbitrary destinations are rejected. Otherwise install to the default user-scope path above.

What This Skill Installs

This skill installs the bundled TOML subagent templates that the Codex autopilot expects to exist as real custom subagents:

  • analyze-executor.toml
  • artifact-author.toml
  • autopilot-fast-helper.toml
  • checklist-executor.toml
  • clarify-executor.toml
  • codebase-analyst.toml
  • domain-researcher.toml
  • implement-executor.toml
  • phase-executor.toml
  • spec-context-analyst.toml
  • uat-runbook-author.toml

The bundled source inventory is strict: all 11 TOML files must be present before the installer plans either static or route-aware destination changes. In route-aware planning, 10 files are required destination agents and autopilot-fast-helper.toml is the only optional helper. The main autopilot may use that helper for tiny advisory text-only prep work when gpt-5.6-luna is available, but autopilot must continue without it if the helper is unavailable and no-helper continuation validates.

These files follow the official Codex subagent format: one standalone TOML file per custom agent, with required name, description, and developer_instructions fields plus Codex config such as model, model_reasoning_effort, and sandbox_mode.

Operator note: on Codex, sandbox_mode = "read-only" does not sandbox MCP server processes. The agent TOML cannot restrict tools, so to keep a read-only agent provably unable to cause writes via MCP, the operator must curate write-capable MCP servers OUT at the profile/config level (enabled = false, or enabled_tools/disabled_tools).

Read the full file on GitHub · 373 lines

Files

What ships with it

1 file 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. 3d ago First seen · 373 lines · 54 tokens per session scan A 96eac5d13235

Subscribe to this mod's changes

install is a skill published in the GitHub repository racecraft-lab/racecraft-plugins-public (5 stars, last pushed yesterday), licensed MIT. It adds 54 tokens to every session and 3,636 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 2026-09-04.

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