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 fall-out-bug/sdp --skill prototypegit clone --depth 1 https://github.com/fall-out-bug/sdpWrote 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/fall-out-bug/sdp/prototype)<a href="https://agentmods.dev/skills/fall-out-bug/sdp/prototype"><img src="https://agentmods.dev/badge/skills/fall-out-bug/sdp/prototype/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/skills/fall-out-bug/sdp/prototype"><img src="https://agentmods.dev/badge/skills/fall-out-bug/sdp/prototype.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 | $0.00011 | $0.00213 |
| Opus 5.5 | $0.00004 | $0.00085 |
| Sonnet 5.5 | $0.00002 | $0.00043 |
| Haiku 4.5 | $0.00001 | $0.00021 |
Grade A, and why
prototype 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.
What it actually says
@prototype
Ultra-fast feature planning: 5-question interview → 1-3 workstreams → @oneshot with relaxed gates.
When to Use
Experienced devs, need prototype fast, tech debt acceptable. Not for production or security-critical.
Gate Overrides
| Gate | Normal | Prototype |
|---|---|---|
| TDD | Required | Optional |
| Coverage | ≥80% | None |
| Architecture | Clean | Monolithic OK |
Non-negotiable: code compiles, runs, no crashes, basic security.
Workflow
- AskUserQuestion: problem, scope, dependencies, risks, success
- Generate 1-3 workstreams
- Launch @oneshot
Output
docs/drafts/prototype-{id}.md, docs/workstreams/backlog/00-FFF-*.md
See Also
- @feature — Full planning
- @oneshot — Execution
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 First seen · 38 lines · 11 tokens per session scan A 74dcf59d283a
prototype is a skill published in the GitHub repository fall-out-bug/sdp (19 stars, last pushed 4mo ago), licensed MIT. It adds 11 tokens to every session and 213 once invoked, about $0.0000 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 2026-08-30.
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Verify AI-generated code before shipping. Run Umbra's Trust Score scan before committing or finishing any coding task, treat findings as blocking issues, and re-scan until clean. Use when finishing a task, before a commit, or when reviewing code written by an agent.