Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add slamb2k/mad-skills/plugin install mad-skillsWrote 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/slamb2k/mad-skills/speccy)<a href="https://agentmods.dev/skills/slamb2k/mad-skills/speccy"><img src="https://agentmods.dev/badge/skills/slamb2k/mad-skills/speccy/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/slamb2k/mad-skills/speccy"><img src="https://agentmods.dev/badge/skills/slamb2k/mad-skills/speccy.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 | $0.00069 | $0.03374 |
| Opus 5 | $0.00034 | $0.01687 |
| Sonnet 5 | $0.00014 | $0.00675 |
| Haiku 4.5 | $0.00007 | $0.00337 |
Grade B, and why
speccy scanned grade B with 1 finding 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.
Enumerates other installed skillsmediumAgent snooping
Other skills' SKILL.md files reveal prompts, capabilities and secrets that should be invisible to peers.
| prime | skill | `ls .claude/skills/prime/SKILL.md ~/.claude/skills/prime/SKILL.md ~/.claude/plugins/marketplaces/slamb2k/skills/prime/SKILL.md 2>/dev/null` | no | fallback | Context loading; falls back to manual projec How it starts
The opening of the file, as written. The whole thing — 308 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Speccy - Interview-Driven Specification Builder
When this skill is invoked, IMMEDIATELY output the banner below before doing anything else.
Pick ONE tagline at random — vary your choice each time.
CRITICAL: Reproduce the banner EXACTLY character-for-character, including the diagonal / glyph before the name.
{tagline}
/$$ /$$$$$$ /$$$$$$$ /$$$$$$$$ /$$$$$$ /$$$$$$ /$$ /$$
/$$//$$__ $$| $$__ $$| $$_____/ /$$__ $$ /$$__ $$| $$ /$$/
/$$/| $$ \__/| $$ \ $$| $$ | $$ \__/| $$ \__/ \ $$ /$$/
/$$/ | $$$$$$ | $$$$$$$/| $$$$$ | $$ | $$ \ $$$$/
/$$/ \____ $$| $$____/ | $$__/ | $$ | $$ \ $$/
/$$/ /$$ \ $$| $$ | $$ | $$ $$| $$ $$ | $$
/$$/ | $$$$$$/| $$ | $$$$$$$$| $$$$$$/| $$$$$$/ | $$
|__/ \______/ |__/ |________/ \______/ \______/ |__/
Taglines:
- 🔍 Tell me everything...
- 🧠 Let's think this through!
- 📋 Spec it before you wreck it!
- 🎤 Interview mode: ACTIVATED
- 💡 Great specs start with great questions!
- 🏗️ Measure twice, code once!
- 📝 No assumption left behind!
- 🎯 Precision engineering starts here!
Output Formatting
After the banner, display parsed input:
┌─ Input ────────────────────────────────────────
│ {Field}: {value}
│ Flags: {parsed flags or "none"}
└────────────────────────────────────────────────
Pre-flight results:
── Pre-flight ───────────────────────────────────
✅ {dep} {version or "found"}
⚠️ {dep} not found → {fallback detail}
❌ {dep} missing → stopping
──────────────────────────────────────────────────
Stage/phase headers: ━━ {N} · {Name} ━━━━━━━━━━━━━━━━━━━━━━━━━
Status icons: ✅ done · ❌ failed · ⚠️ degraded · ⏳ working · ⏭️ skipped
Interview the user through multiple rounds of targeted questions to build
a comprehensive specification, then write it directly using the spec template
in references/spec-template.md.
What ships with it
9 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- references/autonomous-interview.md 12 KB
- references/interview-guide.md 3.1 KB
- references/spec-template-small.md 1.4 KB
- references/spec-template.md 4.9 KB
- scripts/spec-completeness-check.sh 2.4 KB runs code
- scripts/spec-completeness-check.test.js 2.6 KB runs code
- scripts/spec-eligibility-check.sh 2.4 KB runs code
- scripts/spec-eligibility-check.test.js 2.6 KB runs code
- tests/evals.json 12 KB
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.
- 10d ago First seen · 308 lines · 69 tokens per session scan B e9b2ddd6caa8
speccy is a skill published in the GitHub repository slamb2k/mad-skills (5 stars, last pushed 3d ago), licensed MIT. It adds 69 tokens to every session and 3,374 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 1 finding (enumerates other installed skills). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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