chief-loop

chief-loop is a skill for Claude Code, Codex from thaitype/chief. It costs 70 tokens per session (1,285 once invoked), scanned A, original, MIT.

A workflow that runs an AI coding agent through all batches of a milestone until its goals and requirements are met. It records a separate report for each task and can use a temporary agent to suggest options when a decision is unclear.

In plain words
What is it for?
Use it when a project already has defined goals and contracts and you want an agent to execute the milestone in automatic mode from start to finish.
Why use it?
It helps carry a milestone through repeated batches while preserving task-level reports and the reasoning behind decisions.

Skill for Claude CodeCodex

Part of the chief-skills plugin — 14 skills 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/thaitype/chief/chief-loop
Any agent
npx skills add thaitype/chief --skill chief-loop
Clone the repo
git clone --depth 1 https://github.com/thaitype/chief

Made for: Claude Code, Codex.

Or install chief-skills, the plugin that ships this one along with the rest of its 14 skills.

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 chief-loop

README.md
[![agentmods](https://agentmods.dev/badge/skills/thaitype/chief/chief-loop.svg)](https://agentmods.dev/skills/thaitype/chief/chief-loop)
Your own site
<a href="https://agentmods.dev/skills/thaitype/chief/chief-loop"><img src="https://agentmods.dev/badge/skills/thaitype/chief/chief-loop.svg" alt="Measured on agentmods" height="20"></a>
Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,285 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 $0.00070 $0.01285
Opus 5 $0.00035 $0.00642
Sonnet 5 $0.00014 $0.00257
Haiku 4.5 $0.00007 $0.00128

Measured 2d ago against content hash 6cda4b4863c8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

chief-loop 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.

skills/chief/chief-loop/SKILL.md · 139 lines

How it starts

The opening of the file, as written. The whole thing — 139 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Run chief-agent across the full milestone — batch after batch — until both the goals and the contracts are satisfied, recording a decision-aware report for every task instead of one combined report per batch.

This builds directly on chief-autopilot's auto mode. If you want the "stop and ask a human on ambiguity" behavior, use chief-autopilot safe instead — chief-loop only runs in auto mode; it doesn't have a safe-mode equivalent.

Prerequisite Check

Before doing anything:

  1. Identify the active milestone directory under .chief/.
  2. Check that _goal/ has at least one non-empty file.
  3. Check that _contract/ has at least one non-empty file.

If either is missing → STOP. Tell the user:

"Goals and contracts are required for chief-loop. Run /chief-plan first."

Do NOT proceed.

Entry Confirmation

Present the current goals and contracts to the user in a brief summary (file names + 1-line description each).

Ask one question:

"Goals and contracts look correct? Proceed with chief-loop, or use /chief-plan to revise first?"

If the user says revise → stop. If the user confirms → proceed.

Optional: if the loop-readiness skill is available, offer to run it against this milestone's plan before proceeding — it reviews whether the plan has enough feedforward/feedback coverage to run safely unattended. This is a suggestion, not a requirement; proceed without it if the user declines.

Outer Loop (spans as many batches as it takes)

1. Create or update TODO

Read existing _plan/_todo.md if present. Create the next batch of 3–5 tasks based on goals, contracts, and what's already done — same small-batches principle as chief-autopilot.

Write _plan/_todo.md. Do NOT wait for approval — this is autopilot-style, no pausing for plan review.

2. Work the batch, one task at a time

For each uncompleted task in the current batch:

  1. Delegate to builder-agent with:
    • The TODO entry
    • Milestone goals (_goal/)
    • Milestone contracts (_contract/)
    • Relevant global rules (.chief/_rules/)
    • Verification expectations
  2. Wait for builder to complete.
  3. If builder reports a blocker or ambiguity, see Handling Ambiguity below before moving on.
  4. Mark the task [x] in _todo.md.
  5. Write that task's report (see Task Report below) — do this immediately, before starting the next task. Don't batch report-writing up to the end.

Read the full file on GitHub · 139 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 · 139 lines · 70 tokens per session scan A 6cda4b4863c8

Subscribe to this mod's changes

chief-loop is a skill published in the GitHub repository thaitype/chief (59 stars, last pushed today), licensed MIT. It adds 70 tokens to every session and 1,285 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 2026-09-03.

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