agentic-code AGENTS.md

Repository instructions for an agent-based coding project, covering goals, boundaries, session setup, and task routing.

In plain words
What is it for?
Set up a work session, choose the relevant task definition or skill, preserve requirements, and verify that the requested result is observable.
Why use it?
They help an automated coding agent decide what to inspect, what instructions to load, and when to ask for approval.

Instructions file for CodexOpenCode

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 instructions/shinpr/agentic-code/agents-md
Clone the repo
git clone --depth 1 https://github.com/shinpr/agentic-code

Made for: Codex, OpenCode.

Per session 760 This file is loaded in full into every session.
When invoked 760 The same file — it is already loaded in full.
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 $0.00760 $0.00760
Opus 5 $0.00380 $0.00380
Sonnet 5 $0.00152 $0.00152
Haiku 4.5 $0.00076 $0.00076

Measured 2d ago against content hash 5c2c951121f7, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

agentic-code AGENTS.md 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.

AGENTS.md · 93 lines

How it starts

The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Goal

Use the repository's task definitions and skills to complete the requested outcome with the minimum sufficient work and observable verification.

Operating Boundaries

  • Preserve confirmed requirements, explicit non-goals, repository contracts, and user authority.
  • Treat reuse and no-change as valid conclusions when repository evidence shows the outcome is already satisfied.
  • Require user approval when the product outcome, scope, a major durable design decision, or an irreversible external state would change.
  • Consider work complete when the requested behavior is observable through the narrowest sufficient verification boundary.

Session Setup

For repository work:

  1. Inspect the project structure.
  2. Load .agents/skills/metacognition/SKILL.md and keep it active for the session.

Task Routing

Before loading task-analysis.md, check whether repository inspection is needed to decide how to execute the request.

  • If not, execute the request directly.
  • If yes, load .agents/tasks/task-analysis.md and use its result to select the path.

Small / Single Task

  • Load the task definition that owns the requested result.
  • Load only the skills required for the current decision or action.
  • Execute directly without the workflow.

Medium / Large Work

  • Follow .agents/workflows/agentic-coding.md after the user approves the recommended path.
  • Medium means one coherent outcome coordinates across a responsibility boundary or requires a durable design decision.
  • Large means multiple independently valuable outcomes require separate design decisions.
  • File count is supporting evidence, not the scale rule.

Task Definitions and Skills

  • Task definitions describe the result, required inputs, execution criteria, and completion evidence for one kind of work.
  • Skills supply reusable judgment and quality rules.
  • Read a task or skill at the point where its rules affect the next decision; do not preload future phases.
  • When a task names required skills, confirm they are active before executing that task.

Read the full file on GitHub · 93 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 · 93 lines · 760 tokens per session scan A 5c2c951121f7

Subscribe to this mod's changes

agentic-code AGENTS.md is an instructions file published in the GitHub repository shinpr/agentic-code (49 stars, last pushed 3d ago), licensed MIT. It adds 760 tokens to every session, about $0.0038 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 2026-08-30.

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