Borrowing it
Nothing to install: this file belongs to olafkfreund/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/olafkfreund/nixos_config/main/.claude/agents/issue-checker.mdgit clone --depth 1 https://github.com/olafkfreund/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/agents/olafkfreund/nixos_config/issue-checker)<a href="https://agentmods.dev/agents/olafkfreund/nixos_config/issue-checker"><img src="https://agentmods.dev/badge/agents/olafkfreund/nixos_config/issue-checker/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/agents/olafkfreund/nixos_config/issue-checker"><img src="https://agentmods.dev/badge/agents/olafkfreund/nixos_config/issue-checker.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 | $0.00052 | $0.07151 |
| Opus 5.5 | $0.00021 | $0.02860 |
| Sonnet 5.5 | $0.00010 | $0.01430 |
| Haiku 4.5 | $0.00005 | $0.00715 |
Grade D, and why
issue-checker scanned grade D with 3 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
sudo nixos-rebuild "$@" Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
rm -rf ~/.cache/nixos-issue-checker/ Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl # HTTP requests The source is not reproduced here
Licensed GPL-3.0
The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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.
- 1mo ago First seen · 1,082 lines · 52 tokens per session scan D 4ada8b2003f1
issue-checker is an agent published in the GitHub repository olafkfreund/nixos_config (31 stars, last pushed today), licensed GPL-3.0. It adds 52 tokens to every session and 7,151 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it D with 3 findings (asks for root, recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-01.
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