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.
npx skills add danweinerdev/claude-sdd-planner --skill sdd-plangit 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/skills/danweinerdev/claude-sdd-planner/sdd-plan)<a href="https://agentmods.dev/skills/danweinerdev/claude-sdd-planner/sdd-plan"><img src="https://agentmods.dev/badge/skills/danweinerdev/claude-sdd-planner/sdd-plan.svg" alt="Measured on agentmods" 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 | $0.00075 | $0.02633 |
| Opus 5 | $0.00037 | $0.01316 |
| Sonnet 5 | $0.00015 | $0.00527 |
| Haiku 4.5 | $0.00007 | $0.00263 |
Grade A, and why
sdd-plan 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 3d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- plan — 92% identical, 17 lines differ
How it starts
The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Decompose Work into an Executable Plan Graph
Resources
Before opening shared/..., follow symlinks in this loaded file's path, then derive <plugin-root> from <plugin-root>/skills/<name>/SKILL.md; fallback search roots are repository/user .agents/ (including $HOME/.agents/plugins/*/), Codex ${CODEX_HOME:-$HOME/.codex}/plugins/cache/*/*/*/, and runtime-configured skill roots. Accept only a root containing this skill, shared/agent-runtime.md, and the matching plugin manifest; never use the working directory. Then read <plugin-root>/shared/agent-runtime.md and <plugin-root>/shared/path-resolution.md, and resolve every shared/<path> reference in this skill against <plugin-root>.
Resource boundary: Read the plugin, all SKILL.md files, and shared/ resources in place. Never copy or symlink them into the working directory, target repository, or planning root. Only generated SDD outputs may be materialized from bundled resources.
What This Skill Does
Three tasks are LLM-shaped, and this skill does exactly those three: negotiate intent (the interview), decompose (author the node payload), and read back diagnostics (compile findings, silhouette, critical path). Everything else — validation, coverage checking, view rendering, state — is a CLI call, and the tool refuses what a narrated plan used to let drift. You never write plan or phase markdown by hand under this protocol: phase docs are rendered projections of the committed graph, regenerated by sdd compile, and hand edits to them are overwritten or refused.
Routing: Graph Plans vs v1 Plans
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.
- 3d ago Changed · -50 lines · -5 tokens per session 0c0743522e60
- 6d ago First seen · 166 lines · 80 tokens per session scan A 2393824982ed
sdd-plan is a skill published in the GitHub repository danweinerdev/claude-sdd-planner (2 stars, last pushed 2d ago), licensed MIT. It adds 75 tokens to every session and 2,633 once invoked, about $0.0004 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 2026-08-31.
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