What is tentaflake-change-review?

A review checklist for changes to the tentaflake NixOS template, a reusable setup for configuring NixOS systems. It requires each meaningful change to state its reason, include a verification step, and keep documentation current.

Use it when planning, implementing, or reviewing non-trivial template changes such as modules, options, scripts, or CI steps.

It helps prevent code changes with no recorded purpose, untested assumptions, or instructions that no longer match the code.

How timfewi/tentaflake configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to timfewi/tentaflake. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/timfewi/tentaflake/main/.agents/skills/tentaflake-change-review/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/timfewi/tentaflake

Made for: Claude Code, Codex.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/timfewi/tentaflake/tentaflake-change-review/github.svg)](https://agentmods.dev/skills/timfewi/tentaflake/tentaflake-change-review)

Your own site

<a href="https://agentmods.dev/skills/timfewi/tentaflake/tentaflake-change-review"><img src="https://agentmods.dev/badge/skills/timfewi/tentaflake/tentaflake-change-review/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/timfewi/tentaflake/tentaflake-change-review"><img src="https://agentmods.dev/badge/skills/timfewi/tentaflake/tentaflake-change-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 324 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector warn 7 Sept 2026

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 Agent Snooping · line 81
Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.

Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

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	$0.00020	$0.00324
Opus 5.5	$0.00008	$0.00130
Sonnet 5.5	$0.00004	$0.00065
Haiku 4.5	$0.00002	$0.00032

Measured 4d ago against content hash a084be7888b5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tentaflake-change-review 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.

.agents/skills/tentaflake-change-review/SKILL.md · 29 lines

What it actually says

Change review

Name the requirement and inspect the owning source before editing. Preserve unrelated work; read AGENTS.md for architecture/privacy/security contracts.
Select focused verification using build guidance. Start with just fast; locally, evaluation, builds and runtime acceptance are separate gates, while CI runs every affected gate and all must pass. Delegate workers skip checks until the integration owner runs them.
Review the complete diff for caller/schema/identity migration and state preservation. No silent security downgrade, implicit quota/budget reset or claim of vendor acceptance from a synthetic test.
Synchronize affected examples, guides and skills. Runtime facts belong only in adapters/<id>.nix; regenerate catalog projections after changes. docs/ is product documentation only; plans, notes and private deployment facts go to the ignored .scratch/, never into Git.
Report actual commands/results and missing evidence. A build never authorizes activation. Fill every applicable PR-template section/checklist and use DCO sign-off with the human's configured identity when committing is authorized.

Keep docs compact and crosslink authoritative owners. The public repository owns docs; website publication is separate and follows a pinned release. See CONTRIBUTING.

Changes

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 Changed · -20 lines · -8 tokens per session a084be7888b5
17d ago Changed · -14 lines efe449ad675d
23d ago Changed · +17 lines cbe23b2f61ea
1mo ago Changed · -130 lines · -28 tokens per session b5c9f0841959
1mo ago Changed · +5 lines 86cd008edd0c
2mo ago First seen · 171 lines · 56 tokens per session scan A 911273329d98

Subscribe to this mod's changes

tentaflake-change-review is a skill published in the GitHub repository timfewi/tentaflake (32 stars, last pushed yesterday), licensed MIT. It adds 20 tokens to every session and 324 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-30.

Code review DevOps and cloud Planning agents cybersecurity infrastructure-as-code linux nix-flake

tentaflake-change-review next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
tentaflake-change-reviewtimfewi/tentaflake	Skill	32	yesterday	MIT	A	20	Claude Code, Codex
find-security-vulnerabilities-in-codeusestrix/strix	Skill	74k	yesterday	Apache-2.0	A	129	Claude Code, Codex
fix-security-vulnerabilities-with-strixusestrix/strix	Skill	74k	yesterday	Apache-2.0	A	124	Claude Code, Codex
migration-reviewrohitg00/ai-engineering-from-scratch	Skill	77k	yesterday	MIT	A	35	Claude Code
ci-security-scanning-with-strixusestrix/strix	Skill	74k	yesterday	Apache-2.0	B	140	Claude Code, Codex
otto-pr-review-loopomnigent-ai/omnigent	Skill	11k	yesterday	Apache-2.0	A	17	Claude Code, Codex
adk-go-self-reviewgoogle/adk-go	Skill	8.9k	yesterday	Apache-2.0	A	87	Claude Code, Codex

tentaflake: Skill for Claude Code