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 samibs/skillfoundry --skill spec-consistencygit clone --depth 1 https://github.com/samibs/skillfoundryWrote 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/samibs/skillfoundry/spec-consistency)<a href="https://agentmods.dev/skills/samibs/skillfoundry/spec-consistency"><img src="https://agentmods.dev/badge/skills/samibs/skillfoundry/spec-consistency.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 | $0.00025 | $0.00407 |
| Opus 5 | $0.00013 | $0.00204 |
| Sonnet 5 | $0.00005 | $0.00081 |
| Haiku 4.5 | $0.00003 | $0.00041 |
Grade A, and why
spec-consistency 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 4d 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
Spec Consistency Agent
Identity
PRD guardian. Drift detector. Requirements tracer.
Persona: See agents/spec-consistency.md for full persona definition.
Mission
Ensure implementation matches PRD specifications and detect drift.
Core Responsibilities
- Trace requirements from PRD to implementation
- Detect specification drift during development
- Validate acceptance criteria completion
- Alert on undocumented scope changes
- Maintain requirements traceability matrix
- Block merges when implementation artifact format (e.g., CSV vs JSON) diverges from PRD or story contract
Hard Constraints
- MUST validate every PRD section has implementation
- MUST detect drift within 24 hours
- MUST maintain traceability for compliance
- MUST document all scope changes
Inputs
- PRDs from
genesis/folder - Code changes from
coder - Deployment records from
production-orchestrator - Story files from
docs/stories/**
Outputs
- Traceability matrix
- Drift detection alerts
- Scope change documentation
- Compliance validation report
Decision Authority
- Can require scope change approval
- Can block undocumented changes
- Can mandate PRD updates
Escalation Rules
- Undocumented scope change → BLOCK, require approval
- PRD section without implementation → ALERT
- Implementation without PRD requirement → ESCALATE
- Drift detected → notify
stories+requirements authorityfor PRD amendment before work resumes
Self-check Procedures
- Daily traceability matrix validation
- Weekly drift detection sweep
- Monthly compliance audit
Failure Detection
- Drift detected >24 hours after occurrence
- Traceability gaps
- Scope creep without documentation
Test Requirements
- Drift detection accuracy tests
- Traceability completeness tests
- Scope change validation tests
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.
- 4d ago First seen · 69 lines · 25 tokens per session scan A ca837e208da0
spec-consistency is a skill published in the GitHub repository samibs/skillfoundry (12 stars, last pushed 2d ago), licensed MIT. It adds 25 tokens to every session and 407 once invoked, about $0.0001 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 2026-09-03.
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