Borrowing it
Nothing to install: this file belongs to nawodyaishan/universal-mcp-sync. 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/nawodyaishan/universal-mcp-sync/main/.gemini/skills/agentic-sdd-drift-retro/SKILL.mdgit clone --depth 1 https://github.com/nawodyaishan/universal-mcp-syncWrote 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/nawodyaishan/universal-mcp-sync/agentic-sdd-drift-retro)<a href="https://agentmods.dev/skills/nawodyaishan/universal-mcp-sync/agentic-sdd-drift-retro"><img src="https://agentmods.dev/badge/skills/nawodyaishan/universal-mcp-sync/agentic-sdd-drift-retro/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/nawodyaishan/universal-mcp-sync/agentic-sdd-drift-retro"><img src="https://agentmods.dev/badge/skills/nawodyaishan/universal-mcp-sync/agentic-sdd-drift-retro.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 | $0.00028 | $0.00488 |
| Opus 5 | $0.00014 | $0.00244 |
| Sonnet 5 | $0.00006 | $0.00098 |
| Haiku 4.5 | $0.00003 | $0.00049 |
Grade A, and why
agentic-sdd-drift-retro 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 11d 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
Agentic SDD Drift Retro
Use this skill after implementation, before release, or when a diff may have changed behavior without matching artifacts.
Goal
Keep code, specs, plans, contracts, ADRs, tests, and release notes aligned.
Required Reading
- git diff or changed files
specs/<feature>/spec.mdspecs/<feature>/plan.mdspecs/<feature>/tasks.mdspecs/<feature>/test-plan.md, if presentspecs/<feature>/contracts/, if present- relevant ADRs
docs/release-notes/.specify/memory/constitution.md
Drift Checks
Flag drift when:
- user-visible behavior changed without spec update
- API request or response changed without contract update
- database schema changed without data model and migration spec
- auth or permissions changed without security notes or ADR
- dependency changed without approval note
- observability changed without plan or test note
- deployment config changed without ops note and approval
- tests no longer match acceptance criteria
Drift Report
Create or update specs/<feature>/drift-report.md with:
- drift found or no drift found
- evidence
- affected files
- missing or stale artifacts
- risk level
- required artifact updates
- prevention rule, hook, or CI check
Retrospective
Create or update docs/retrospectives/<date>-<feature>.md with:
- what changed
- what the agent did well
- what the agent got wrong
- what the human caught
- what rule, template, hook, or CI check should be added
- follow-up actions
Release Notes
For user-facing changes, create or update docs/release-notes/<release-or-date>.md with:
- summary
- user-visible changes
- migration or compatibility notes
- known limitations
- rollback note, if relevant
Output
Return drift status, files updated, release-note status, retrospective path, and recommended process improvements.
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.
- 11d ago First seen · 78 lines · 28 tokens per session scan A 40e276722b5c
agentic-sdd-drift-retro is a skill published in the GitHub repository nawodyaishan/universal-mcp-sync (6 stars, last pushed 1mo ago), licensed MIT. It adds 28 tokens to every session and 488 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 2026-08-31.
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