Borrowing it
Nothing to install: this file belongs to hbarbosa02/alaz-mcp-nestjs. 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/hbarbosa02/alaz-mcp-nestjs/main/.cursor/skills/spec-driven/SKILL.mdgit clone --depth 1 https://github.com/hbarbosa02/alaz-mcp-nestjsWrote 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/hbarbosa02/alaz-mcp-nestjs/spec-driven)<a href="https://agentmods.dev/skills/hbarbosa02/alaz-mcp-nestjs/spec-driven"><img src="https://agentmods.dev/badge/skills/hbarbosa02/alaz-mcp-nestjs/spec-driven/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/hbarbosa02/alaz-mcp-nestjs/spec-driven"><img src="https://agentmods.dev/badge/skills/hbarbosa02/alaz-mcp-nestjs/spec-driven.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 | $0.00229 | $0.02760 |
| Opus 5 | $0.00114 | $0.01380 |
| Sonnet 5 | $0.00046 | $0.00552 |
| Haiku 4.5 | $0.00023 | $0.00276 |
Grade A, and why
spec-driven 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 12d 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 — 217 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Tech Lead's Club - Spec-Driven Development
Plan and implement projects with precision. Granular tasks. Clear dependencies. Right tools. Zero ceremony.
┌──────────┐ ┌──────────┐ ┌─────────┐ ┌─────────┐
│ SPECIFY │ → │ DESIGN │ → │ TASKS │ → │ EXECUTE │
└──────────┘ └──────────┘ └─────────┘ └─────────┘
required optional* optional* required
* Agent auto-skips when scope doesn't need it
Auto-Sizing: The Core Principle
The complexity determines the depth, not a fixed pipeline. Before starting any feature, assess its scope and apply only what's needed:
| Scope | What | Specify | Design | Tasks | Execute |
|---|---|---|---|---|---|
| Small | ≤3 files, one sentence | Quick mode — skip pipeline entirely | - | - | - |
| Medium | Clear feature, <10 tasks | Spec (brief) | Skip — design inline | Skip — tasks implicit | Implement + verify |
| Large | Multi-component feature | Full spec + requirement IDs | Architecture + components | Full breakdown + dependencies | Implement + verify per task |
| Complex | Ambiguity, new domain | Full spec + discuss gray areas | Research + architecture | Breakdown + parallel plan | Implement + interactive UAT |
What ships with it
17 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.
- README.md 21 KB
- references/brownfield-mapping.md 11 KB
- references/code-analysis.md 2.2 KB
- references/coding-principles.md 1.7 KB
- references/concerns.md 5.8 KB
- references/context-limits.md 1.3 KB
- references/design.md 5.4 KB
- references/discuss.md 4.9 KB
- references/implement.md 9.6 KB
- references/project-init.md 1.4 KB
- references/quick-mode.md 3.6 KB
- references/roadmap.md 1.4 KB
- references/session-handoff.md 1.3 KB
- references/specify.md 4.4 KB
- references/state-management.md 3.2 KB
- references/tasks.md 13 KB
- references/validate.md 7.4 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.
- 12d ago First seen · 217 lines · 229 tokens per session scan A 9a72287195b9
spec-driven is a skill published in the GitHub repository hbarbosa02/alaz-mcp-nestjs (2 stars, last pushed 4mo ago), licensed MIT. It adds 229 tokens to every session and 2,760 once invoked, about $0.0011 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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