agent-loop

A workflow that coordinates separate agents for planning, coding, review, and publishing. It uses test-first development, where tests are written before the code.

In plain words
What is it for?
Use it to plan, implement, test, review, and publish software features through a multi-agent process.
Why use it?
It divides feature work into clear stages and adds review before changes are published. This helps catch problems and keep the implementation aligned with project rules.

Skill for Claude CodeCodex

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/k0ry/mcpdeveloper/agent-loop
Any agent
npx skills add k0ry/MCPDeveloper --skill agent-loop
Clone the repo
git clone --depth 1 https://github.com/k0ry/MCPDeveloper

Made for: Claude Code, Codex.

Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,125 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. Scan, not verified.
Origin unknown 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 $0.00035 $0.01125
Opus 5 $0.00017 $0.00562
Sonnet 5 $0.00007 $0.00225
Haiku 4.5 $0.00003 $0.00112

Measured today against content hash 4944f2992a2a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

agent-loop scanned grade B with 1 finding 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 today.

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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

* Primary Skill: [incremental-implementation](../../../../../.gemini/config/skills/incremental-implementation/SKILL.md) (guides vertical feature slicing and simplicity constraints).
.agents/skills/agent-loop/SKILL.md · 87 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. today First seen · 87 lines · 35 tokens per session scan B 4944f2992a2a

Subscribe to this mod's changes

agent-loop is a skill published in the GitHub repository k0ry/MCPDeveloper (0 stars, last pushed 7d ago), with no licence file. It adds 35 tokens to every session and 1,125 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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