sdd-pilot: Instructions file for Codex

AGENTS.md

sdd-pilot AGENTS.md is an instructions file for Codex, OpenCode from attilaszasz/sdd-pilot. It costs 463 tokens per session, scanned A, original, MIT.

Project instructions for using a strict specification-driven development process. This process moves from requirements through planning and tasks to implementation and quality checks.

In plain words
What is it for?
Use it to guide feature delivery, enforce project conventions, and validate documents such as specifications, plans, and acceptance criteria.
Why use it?
It prevents development phases from being skipped and blocks later work when required documents or review gates are missing.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md; mentions Codex; mentions OpenCode.

This is attilaszasz/sdd-pilot's own configuration. It tells Codex and OpenCode how to work on sdd-pilot itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything sdd-pilot configures →

Reuse

Borrowing it

Nothing to install: this file belongs to attilaszasz/sdd-pilot. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/attilaszasz/sdd-pilot/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/attilaszasz/sdd-pilot

Made for: Codex, OpenCode.

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 sdd-pilot AGENTS.md

README.md
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Your own site
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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.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/attilaszasz/sdd-pilot/agents-md"><img src="https://agentmods.dev/badge/instructions/attilaszasz/sdd-pilot/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 463 This file is loaded in full into every session.
When invoked 463 The same file — it is already loaded in full.
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 $0.00463 $0.00463
Opus 5.5 $0.00185 $0.00185
Sonnet 5.5 $0.00093 $0.00093
Haiku 4.5 $0.00046 $0.00046

Measured 10d ago against content hash ca180d1253f7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sdd-pilot 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 10d 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 · 29 lines

How it starts

The opening of the file, as written. The whole thing — 29 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SDD Pilot framework development

This checkout contains the framework source, not an installed downstream project. Maintain the framework directly; downstream lifecycle gates do not govern framework development.

Command guard

If the user requests execution of any /sddp-* command while this file is loaded, stop before running scripts, delegating agents, or modifying artifacts. Warn:

SDD command blocked: framework-development AGENTS.md is loaded. Run this command in a downstream project installed from an SDD Pilot release archive, or in a staged consumer test fixture.

Discussing, reviewing, editing, or testing command implementations is allowed. A command name quoted in documentation or a test is not an execution request. Do not load the downstream instructions into this session to bypass the guard.

Source layout

  • .github/sddp/workflows/: canonical command orchestration.
  • .github/skills/ and .github/agents/: shared references and delegated roles.
  • .agents/, .claude/, .codex/, .opencode/, .windsurf/, and .github/prompts/: host wrappers. Preserve cross-host behavior when changing commands.
  • scripts/ and tests/: Node.js runtime, release tooling, and contract tests. Use Node.js 22 or newer.
  • templates/downstream/AGENTS.md: downstream runtime context, installed as root AGENTS.md in every release archive. Preserve its contracts independently of this file.
  • project-instructions.md: downstream governance template, not framework-development policy.

Maintenance

Keep canonical workflows and host wrappers consistent. Preserve artifact grammars, traceability IDs, and existing consumer behavior unless the requested change explicitly alters them. Never edit downstream fixture artifacts to hide a failing test.

Run node --test tests/*.test.mjs and node scripts/drift-report.mjs --context source --output .build/drift-report --strict after changes. For release changes, test all six host archives and their installed runtime context. Test pipeline execution in staged consumer projects, not this source checkout.

Read the full file on GitHub · 29 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. 10d ago Changed · -128 lines · -2,261 tokens per session ca180d1253f7
  2. 1mo ago Changed · +14 lines · +187 tokens per session 83b1dc619d69
  3. 1mo ago First seen · 143 lines · 2,537 tokens per session scan A 1730401d0300

Subscribe to this mod's changes

sdd-pilot AGENTS.md is an instructions file published in the GitHub repository attilaszasz/sdd-pilot (98 stars, last pushed 4d ago), licensed MIT. It adds 463 tokens to every session, about $0.0019 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 2026-09-03.

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