first

first is a skill for Claude Code, Codex from kenmulford/milestone-driver. It costs 0 tokens per session (15 once invoked), scanned A, original, MIT.

A workflow that takes a GitHub milestone, a group of related software tasks, and works through its issues until they become merged pull requests. It requires TDD, or writing tests to guide the code, and uses automatic checks within a chosen integration branch.

In plain words
What is it for?
Use it to drive all issues in a GitHub milestone toward merged pull requests with test-first development and branch limits.
Why use it?
It gives a defined process for moving a milestone through implementation and review while checking the work mechanically.

Skill for Claude CodeCodex

Part of the milestone-driver plugin — 24 skills, 5 agents, 2 hooks 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/kenmulford/milestone-driver/first
Any agent
npx skills add kenmulford/milestone-driver --skill first
Clone the repo
git clone --depth 1 https://github.com/kenmulford/milestone-driver

Made for: Claude Code, Codex.

Or install milestone-driver, the plugin that ships this one along with the rest of its 24 skills, 5 agents, 2 hooks.

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 first

README.md
[![agentmods](https://agentmods.dev/badge/skills/kenmulford/milestone-driver/first.svg)](https://agentmods.dev/skills/kenmulford/milestone-driver/first)
Your own site
<a href="https://agentmods.dev/skills/kenmulford/milestone-driver/first"><img src="https://agentmods.dev/badge/skills/kenmulford/milestone-driver/first.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 15 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 $0.00000 $0.00015
Opus 5 $0.00000 $0.00008
Sonnet 5 $0.00000 $0.00003
Haiku 4.5 $0.00000 $0.00002

Measured 5d ago against content hash eeeccce51ee7, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

first 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 5d 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

Copies of this mod

1 near-identical copy found in the catalogue:

  • second — 88% identical, 2 lines differ
tests/fixtures/expand-domain-skills/cache1/mkt-b/nonver-multi/aaa/skills/first/SKILL.md · 2 lines

What it actually says

fixture skill (expand-domain-skills): nonver-multi first

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. 5d ago First seen · 2 lines · 0 tokens per session scan A eeeccce51ee7

Subscribe to this mod's changes

first is a skill published in the GitHub repository kenmulford/milestone-driver (2 stars, last pushed 3d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 15 tokens. 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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