Borrowing it
Nothing to install: this file belongs to FilipNowakowicz/nixos-config. 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/FilipNowakowicz/nixos-config/main/.agents/skills/nix-review-ledger-batch/SKILL.mdgit clone --depth 1 https://github.com/FilipNowakowicz/nixos-configWrote 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/filipnowakowicz/nixos-config/nix-review-ledger-batch)<a href="https://agentmods.dev/skills/filipnowakowicz/nixos-config/nix-review-ledger-batch"><img src="https://agentmods.dev/badge/skills/filipnowakowicz/nixos-config/nix-review-ledger-batch/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/filipnowakowicz/nixos-config/nix-review-ledger-batch"><img src="https://agentmods.dev/badge/skills/filipnowakowicz/nixos-config/nix-review-ledger-batch.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 | $0.00026 | $0.00254 |
| Opus 5 | $0.00013 | $0.00127 |
| Sonnet 5 | $0.00005 | $0.00051 |
| Haiku 4.5 | $0.00003 | $0.00025 |
Grade A, and why
nix-review-ledger-batch 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.
What it actually says
Nix Review Ledger Batch
Use this workflow when working through review findings, audits, local backlog items, or status ledgers in this repository.
Workflow
- Read the current source-of-truth file before editing.
- Count or classify the current open items if progress state matters.
- Pick a narrow batch with a clear validation path.
- Implement only that batch.
- Update the matching status/ledger/doc marker in the same batch when requested or when the file is the source of truth for the task.
- Validate with the smallest relevant command first:
bash scripts/validate.sh flake-evalbash scripts/validate.sh lightbash scripts/validate.sh docs- targeted host/package/profile checks as needed.
Guardrails
- Do not prune or rewrite planning docs casually.
- If a finding looks stale or false-positive, verify against the repo before marking it done.
- Keep unrelated refactors out of the batch.
- Leave a clear stop point if remaining items need broader design or live deployment.
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 · 31 lines · 26 tokens per session scan A ebb12d281bd4
nix-review-ledger-batch is a skill published in the GitHub repository FilipNowakowicz/nixos-config (5 stars, last pushed yesterday), licensed MIT. It adds 26 tokens to every session and 254 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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sdd-tasks
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systemic-issue-triage
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spec-kitty-runtime-review
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