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 agentmods add skills/joestump/claude-plugin-sdd/discovernpx skills add joestump/claude-plugin-sdd --skill discovergit clone --depth 1 https://github.com/joestump/claude-plugin-sddWrote 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/joestump/claude-plugin-sdd/discover)<a href="https://agentmods.dev/skills/joestump/claude-plugin-sdd/discover"><img src="https://agentmods.dev/badge/skills/joestump/claude-plugin-sdd/discover.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 | $0.00050 | $0.04038 |
| Opus 5 | $0.00025 | $0.02019 |
| Sonnet 5 | $0.00010 | $0.00808 |
| Haiku 4.5 | $0.00005 | $0.00404 |
Grade A, and why
discover scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 237 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Discover Implicit Architecture
Harness portability. This skill runs on any agent harness that loads Agent Skills — Claude Code, Codex CLI, OpenCode, Crush. Tool names used below (
AskUserQuestion,Task,TeamCreate,SendMessage,TaskCreate,ToolSearch,mcp__*,${CLAUDE_PLUGIN_ROOT}) denote capabilities, not hard requirements: map each to your harness's equivalent or use the documented fallback per${CLAUDE_PLUGIN_ROOT}/references/harness-compat.md. References toCLAUDE.mdmean the project memory file (CLAUDE.md,AGENTS.md, orCRUSH.md) per harness-compat § "Project Memory File". A citation of the formshared-patterns.md § "Section"names one##heading in that file — load only that section (see its "How to Read This File" note), never the whole file.
Explore an existing codebase to discover implicit architectural decisions and specification-worthy subsystems. Produces a suggestion report -- does NOT create any files.
Process
-
Resolve artifact paths: Follow the Artifact Path Resolution pattern from
${CLAUDE_PLUGIN_ROOT}/references/shared-patterns.md§ "Artifact Path Resolution" to determine the ADR and spec directories. If$ARGUMENTScontains--module <name>, resolve paths relative to that module; otherwise, in a workspace, aggregate across all modules. The resolved ADR directory is{adr-dir}and spec directory is{spec-dir}. -
Parse the scope: Extract the optional scope from
$ARGUMENTS.- A directory path:
src/auth/-- limit analysis to that subtree - A domain keyword:
auth,api,data-- limit by semantic relevance - If
$ARGUMENTSis empty, analyze the entire project (or module if--moduleis set)
- A directory path:
-
Validate the scope (if provided):
- For directory paths: verify the path exists. If not, report: "Scope not found:
{scope}. Provide a valid directory path or omit the scope to analyze the entire project."
- For directory paths: verify the path exists. If not, report: "Scope not found:
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.
- yesterday Changed 3885fe59441b
- 5d ago First seen · 237 lines · 50 tokens per session scan A 2be28f47468d
discover is a skill published in the GitHub repository joestump/claude-plugin-sdd (32 stars, last pushed yesterday), licensed MIT. It adds 50 tokens to every session and 4,038 once invoked, about $0.0003 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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