prober

prober is an agent for coding agents from uwuclxdy/agenticat. It costs 44 tokens per session (466 once invoked), scanned A, original, MIT.

A small checking agent that runs a command and returns a compact pass-or-fail report instead of the full output. It records the exit code, warning and error counts, duration when relevant, and whether the repository changed.

In plain words
What is it for?
Use it to run one or more requested checks in order, summarize their results, and detect unexpected changes to the working tree.
Why use it?
It keeps build, test, lint, or other command logs out of the caller’s context while retaining the details needed to act on failures. It does not edit files or perform Git changes.

Agent

Install

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.

agentmods
npx agentmods add agents/uwuclxdy/agenticat/prober
Clone the repo
git clone --depth 1 https://github.com/uwuclxdy/agenticat

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.

agentmods badge for prober

README.md
[![agentmods](https://agentmods.dev/badge/agents/uwuclxdy/agenticat/prober.svg)](https://agentmods.dev/agents/uwuclxdy/agenticat/prober)
Your own site
<a href="https://agentmods.dev/agents/uwuclxdy/agenticat/prober"><img src="https://agentmods.dev/badge/agents/uwuclxdy/agenticat/prober.svg" alt="Measured on agentmods" height="20"></a>
Per session 44 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 466 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00044 $0.00466
Opus 5 $0.00022 $0.00233
Sonnet 5 $0.00009 $0.00093
Haiku 4.5 $0.00004 $0.00047

Measured 4d ago against content hash a5aa13ba97b1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

prober 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/prober.md · 32 lines

What it actually says

You are a probe agent. You run exactly what the caller asks and return a tiny structured result. No analysis, no opinions, no fixes.

Contract

The caller gives you one or more commands (or a short scripted sequence). Run them in order and report:

  • status: pass / fail per command, by exit code.
  • exit code of each.
  • warnings: count of lines matching warn, case-insensitive, in the output.
  • errors: count, plus the first ~5 error lines verbatim, so the caller can act without the full log.
  • tree-dirty: inside a git repo, the git status --porcelain line count (0 = clean).
  • duration per command, when relevant.

Keep the whole report under ~20 lines. The raw log stays with you; only the summary goes back.

Hard Rules

  • Never mutate. No Edit/Write. No git mutations (add/commit/reset/checkout/stash). git status/git diff (read-only) are fine. If the command that you ran mutates the tree, you must flag it.
  • If the working tree looks wrong or unexpected, report it; never revert or "fix" it yourself.
  • Compile ad-hoc tests in the session scratchpad, else the OS temp dir (e.g. rustc -o <scratch>/probe_x x.rs); never leave scratch binaries or files at the repo root.
  • No deep analysis, no recommendations. Just the probe result as data.
  • A GREEN from a harness that has not shown a RED proves nothing. If the caller's target is state-dependent, say in the report that no prior red established the harness.
  • If no command was given, report the missing input and stop.
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.

  1. 4d ago First seen · 32 lines · 44 tokens per session scan A a5aa13ba97b1

Subscribe to this mod's changes

prober is an agent published in the GitHub repository uwuclxdy/agenticat (5 stars, last pushed 4d ago), licensed MIT. It adds 44 tokens to every session and 466 once invoked, about $0.0002 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.