probe

probe is a skill for Claude Code, Codex from supportersimulator/3-surgeons. It costs 10 tokens per session (1,111 once invoked), scanned A, original, MIT.

A health-check tool for verifying that the configured review services can be reached and respond. It checks the Cardiologist and Neurologist endpoints before relying on them.

In plain words
What is it for?
Use it at session start, before operations that require all review services, after infrastructure changes, or when a service returns errors.
Why use it?
It separates connection problems from problems in the review itself, reducing uncertainty before critical operations.

Skill for Claude CodeCodex

Part of the 3-surgeons plugin — 23 skills, 7 commands, 1 agent, 3 hooks, 1 MCP server shipped together

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 skills/supportersimulator/3-surgeons/probe
Any agent
npx skills add supportersimulator/3-surgeons --skill probe
Clone the repo
git clone --depth 1 https://github.com/supportersimulator/3-surgeons

Made for: Claude Code, Codex.

Or install 3-surgeons, the plugin that ships this one along with the rest of its 23 skills, 7 commands, 1 agent, 3 hooks, 1 MCP server.

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 probe

README.md
[![agentmods](https://agentmods.dev/badge/skills/supportersimulator/3-surgeons/probe.svg)](https://agentmods.dev/skills/supportersimulator/3-surgeons/probe)
Your own site
<a href="https://agentmods.dev/skills/supportersimulator/3-surgeons/probe"><img src="https://agentmods.dev/badge/skills/supportersimulator/3-surgeons/probe.svg" alt="Measured on agentmods" height="20"></a>
Per session 10 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,111 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 5.1 $0.00010 $0.01111
Opus 5 $0.00005 $0.00556
Sonnet 5 $0.00002 $0.00222
Haiku 4.5 $0.00001 $0.00111

Measured 5d ago against content hash 7ae5dae68a29, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

probe 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 5d 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.

skills/probe/SKILL.md · 123 lines

How it starts

The opening of the file, as written. The whole thing — 123 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Probe

When to Probe

Probe is a health check -- it pings both the Cardiologist and Neurologist endpoints to verify they are reachable and responding. Run it:

  • At session start -- before relying on any surgeon, confirm they are online
  • Before critical operations -- if you are about to run a cross-examination or consensus that you cannot afford to have partially fail, probe first
  • After infrastructure changes -- restarted Ollama, changed API keys, modified config, switched networks
  • When a surgeon returns errors -- diagnose whether the issue is transient (network blip) or persistent (config error, service down)

Do NOT use for: routine operations where partial degradation is acceptable, or as a substitute for gains-gate (probe checks connectivity only, not full system health).

How to Invoke

CLI

3s probe

MCP Tool

probe()

No arguments needed. Probe checks all configured surgeons.

Interpreting Results

CLI Output

Probing surgeons...

  Cardiologist: OK (245ms)
  Neurologist: OK (89ms)
  Atlas (Claude): always available (this session)

All surgeons operational.

MCP Tool Output

{
  "cardiologist": {"status": "ok", "latency_ms": 245},
  "neurologist": {"status": "ok", "latency_ms": 89},
  "atlas": {"status": "ok", "note": "always available (this session)"}
}

Status Values

Status Meaning
ok Surgeon responded successfully. latency_ms shows response time.
fail Surgeon responded but with an error (e.g., invalid API key, model not found). Check the error field.
unreachable Could not connect to the endpoint at all (network issue, service not running).

Atlas Status

Atlas (Claude) is always reported as ok because it IS the current session. There is no endpoint to ping -- if you are reading this output, Atlas is operational.

What to Do When a Surgeon Is Down

Cardiologist Down (OpenAI API)

Symptom Likely Cause Fix
unreachable Network issue, OpenAI outage Check internet, check status.openai.com
fail with 401 Invalid API key Verify OPENAI_API_KEY env var is set and valid
fail with 429 Rate limited Wait, reduce request frequency
fail with 500+ OpenAI server error Retry in a few minutes

Read the full file on GitHub · 123 lines

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. 5d ago First seen · 123 lines · 10 tokens per session scan A 7ae5dae68a29

Subscribe to this mod's changes

probe is a skill published in the GitHub repository supportersimulator/3-surgeons (2 stars, last pushed 3mo ago), licensed MIT. It adds 10 tokens to every session and 1,111 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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