Borrowing it
Nothing to install: this file belongs to luanmorenommaciel/agentspec. 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/luanmorenommaciel/agentspec/main/.claude/skills/sdd-build/SKILL.mdgit clone --depth 1 https://github.com/luanmorenommaciel/agentspecWrote 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/luanmorenommaciel/agentspec/sdd-build)<a href="https://agentmods.dev/skills/luanmorenommaciel/agentspec/sdd-build"><img src="https://agentmods.dev/badge/skills/luanmorenommaciel/agentspec/sdd-build/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/luanmorenommaciel/agentspec/sdd-build"><img src="https://agentmods.dev/badge/skills/luanmorenommaciel/agentspec/sdd-build.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Excessive Agency · line 342 Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 | $0.00144 | $0.02931 |
| Opus 5 | $0.00072 | $0.01465 |
| Sonnet 5 | $0.00029 | $0.00586 |
| Haiku 4.5 | $0.00014 | $0.00293 |
Grade A, and why
sdd-build 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 8d 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 — 377 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SDD Build — Phase 3 Methodology
The HOW of Phase 3: execute a completed DESIGN into working, verified code with on-the-fly task generation and specialist delegation. The executor is
build-agent(.claude/agents/workflow/build-agent.md); its non-negotiable policies — decide-never-ask and halt-only-on-CRITICAL-risk — govern every step below and are not restated here.
Knowledge Architecture — KB-First Resolution
Follow this resolution order before and during every task. It is mandatory, not optional.
┌─────────────────────────────────────────────────────────────────────┐
│ KNOWLEDGE RESOLUTION ORDER │
├─────────────────────────────────────────────────────────────────────┤
│ │
│ 1. DESIGN LOADING (source of truth for implementation) │
│ └─ Read: .claude/sdd/features/DESIGN_{FEATURE}.md │
│ └─ Extract: File manifest, code patterns, agent assignments │
│ └─ Load KB domains specified in design │
│ │
│ 2. KB PATTERN VALIDATION (before writing code) │
│ └─ Read: .claude/kb/{domain}/patterns/*.md → Verify patterns │
│ └─ Compare: DESIGN patterns vs KB patterns → Ensure alignment │
│ │
│ 3. AGENT DELEGATION (for specialized files) │
│ ├─ @agent-name in manifest → Delegate via Task tool │
│ └─ (general) in manifest → Execute directly from patterns │
│ │
│ 4. CONFIDENCE ASSIGNMENT │
│ ├─ KB pattern + agent specialist → 0.95 → Execute │
│ ├─ KB pattern + general execution → 0.85 → Execute with care │
│ ├─ No KB pattern + agent specialist → 0.80 → Agent handles │
│ └─ No KB pattern + general → 0.70 → Verify after │
│ │
│ 5. DECISION FORKS │
│ └─ Resolve under the executor's decide-never-ask policy and │
│ record per "Recording Autonomous Decisions" below. │
│ │
└─────────────────────────────────────────────────────────────────────┘
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.
- 8d ago First seen · 377 lines · 144 tokens per session scan A 497b8f933df5
sdd-build is a skill published in the GitHub repository luanmorenommaciel/agentspec (246 stars, last pushed today), licensed MIT. It adds 144 tokens to every session and 2,931 once invoked, about $0.0007 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 2026-09-01.
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