c31-loop

c31-loop is a skill for Claude Code, Codex from ChianW/C31. It costs 109 tokens per session (1,836 once invoked), scanned A, original, MIT.

A setup guide that adds scheduled execution to the C31 agent system. It gathers five configuration choices, records them, and creates files for running the task automatically on GitHub Actions or Windows Task Scheduler.

In plain words
What is it for?
It is for choosing a recurring agent task, setting its schedule and operating limits, generating the required configuration files, and activating automatic runs.
Why use it?
It removes the need to design the scheduling configuration by hand and records the decisions made during setup. After configuration, it provides commands for deploying the recurring task.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It is for choosing a recurring agent task, setting its schedule and operating limits, generating the required configuration files, and activating automatic runs.

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Install with agentmods
npx agentmods add skills/chianw/c31/c31-loop
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 ChianW/C31 --skill c31-loop
Clone the repo
git clone --depth 1 https://github.com/ChianW/C31

Made for: Claude Code, 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 c31-loop

README.md
[![agentmods](https://agentmods.dev/badge/skills/chianw/c31/c31-loop/github.svg)](https://agentmods.dev/skills/chianw/c31/c31-loop)
Your own site
<a href="https://agentmods.dev/skills/chianw/c31/c31-loop"><img src="https://agentmods.dev/badge/skills/chianw/c31/c31-loop/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 c31-loop

Your own site · 80×15
<a href="https://agentmods.dev/skills/chianw/c31/c31-loop"><img src="https://agentmods.dev/badge/skills/chianw/c31/c31-loop.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 109 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,836 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 $0.00109 $0.01836
Opus 5.5 $0.00044 $0.00734
Sonnet 5.5 $0.00022 $0.00367
Haiku 4.5 $0.00011 $0.00184

Measured 1mo ago against content hash 63397a945365, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

c31-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 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.

skills/personal/C31-loop/SKILL.md · 238 lines

How it starts

The opening of the file, as written. The whole thing — 238 lines — stays where its author put it; the contents beside it link to each section on GitHub.

C31-loop — Loop Engineering One-Click Setup

Purpose: C31 is a Loop-Ready Agent Harness. It already has State + Verification Chain + Knowledge Flywheel. This skill adds the scheduling layer (Schedule), making it a complete Loop Engineering System.


Hard Rules

  1. Ask only one question at a time — never combine multiple questions.
  2. Every question must provide options — reduce cognitive load for the user.
  3. Generate immediately after the interview — once all 5 questions are answered, generate all files without further confirmation.
  4. Generate means deploy — provide deployment commands that can be copied and pasted directly.
  5. Record decisions — write all 5 answers into loop-adr.md, using the same ADR format as C31-grill.

Phase 1 — Interview (Strictly one question at a time, in order)

Opening statement (fixed):

◆ C31 Loop Setup — 5-Question Configuration Interview
I will ask you 5 questions, then automatically generate all configuration files and provide deployment commands.
You don't need to write any configuration manually.

Ready? Question 1:

Q1 — What task should this loop run?

What should this loop do?

  A) daily-triage    Scan issues/CI/commits daily and generate a report
  B) dep-sweep       Check for stale dependencies weekly and auto-open a PR
  C) ci-watch        Automatically analyze and attempt to fix CI failures
  D) changelog       Auto-generate release notes before each release
  E) custom          Custom task (I'll describe it)

Enter A/B/C/D/E:

→ Record the choice as LOOP_PATTERN


Q2 — How often should it run?

How often should this loop run?

  A) Every weekday at 9 AM
  B) Every 6 hours
  C) On every push/PR
  D) Every Monday at 9 AM
  E) Custom (I'll describe it)

Enter A/B/C/D/E:

→ Convert the choice to a cron expression, record as LOOP_CRON and LOOP_TRIGGER

Option Cron GitHub Trigger
A 0 9 * * 1-5 schedule
B 0 */6 * * * schedule
C n/a push + pull_request
D 0 9 * * 1 schedule
E user-provided user-provided

Read the full file on GitHub · 238 lines

Files

What ships with it

5 files 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. 1mo ago First seen · 238 lines · 109 tokens per session scan A 63397a945365

Subscribe to this mod's changes

c31-loop is a skill published in the GitHub repository ChianW/C31 (1 stars, last pushed 1mo ago), licensed MIT. It adds 109 tokens to every session and 1,836 once invoked, about $0.0004 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 2026-08-31.