Borrowing it
Nothing to install: this file belongs to danweinerdev/claude-sdd-planner. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/danweinerdev/claude-sdd-planner/main/AGENTS.mdgit clone --depth 1 https://github.com/danweinerdev/claude-sdd-plannerWrote 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.
[](https://agentmods.dev/instructions/danweinerdev/claude-sdd-planner/agents-md)<a href="https://agentmods.dev/instructions/danweinerdev/claude-sdd-planner/agents-md"><img src="https://agentmods.dev/badge/instructions/danweinerdev/claude-sdd-planner/agents-md/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.
<a href="https://agentmods.dev/instructions/danweinerdev/claude-sdd-planner/agents-md"><img src="https://agentmods.dev/badge/instructions/danweinerdev/claude-sdd-planner/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.02105 | $0.02105 |
| Opus 5.5 | $0.00842 | $0.00842 |
| Sonnet 5.5 | $0.00421 | $0.00421 |
| Haiku 4.5 | $0.00211 | $0.00211 |
Grade A, and why
claude-sdd-planner 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 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.
How it starts
The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SDD Planner — Agent Development Guide
Runtime-neutral instructions for any coding agent working on this repository. (CLAUDE.md carries the same material with Claude Code specifics; where they disagree, fix both — that is a doc bug.)
What this repository is
A spec-driven development toolchain published to multiple agent harnesses from one source:
- Repo root — the canonical, hand-edited Claude Code plugin:
commands/(lifecycle skills),agents/(review/implementation agent definitions),skills/(model-loaded reference skills),shared/(conventions + templates),hooks/. .codex-plugin/and.opencode-plugin/— GENERATED plugin trees for Codex and OpenCode, identical content, produced bysdd plugin sync. Never edit these by hand — any hand edit is destroyed by the next sync and rejected by the drift gate.cmd/sdd+internal/— the cross-platform Go binary behind every skill: deterministic validation (sdd validate), artifact writes, lifecycle transitions, hooks, and the portable-tree generator (internal/portable)..plans/— this repo's own planning artifacts. Each plan'sPlans/<Name>/<Name>-Decisions.jsonholds itspd-<hex>entries — standing constraints on work in that plan. A change that contradicts one must stop for user reconciliation, never silently proceed. A decisions file is append-only and is never edited directly — for any reason — the only write path issdd decide add, run only after the user's explicit approval of the exact, unmodified statement, shown in full beforehand.
Build and test
make build # compile the sdd binary into build/<os>-<arch>-debug/
make test # THE gate: Go suite + frozen regression corpus + template gate + portable drift/leak/citation gates
make plugins # regenerate .codex-plugin/ and .opencode-plugin/ (sdd plugin sync)
make plugins-check # fail if the generated trees are stale
sdd plugin status # provenance of every portable file (generated / variant / override)
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.
- 1mo ago Changed · +8 lines · +221 tokens per session 99066585cba2
- 1mo ago Changed · +2 lines · +79 tokens per session 2718c6cb6531
- 1mo ago Changed · +10 tokens per session 9f283a0b846f
- 1mo ago Changed · +194 tokens per session 40073dd3688d
- 1mo ago First seen · 75 lines · 1,601 tokens per session scan A c81d2e434660
claude-sdd-planner AGENTS.md is an instructions file published in the GitHub repository danweinerdev/claude-sdd-planner (2 stars, last pushed 25d ago), licensed MIT. It adds 2,105 tokens to every session, about $0.0084 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.