spike-probe SKILL.md skillA

spike-probe from testdouble/han is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add testdouble/han/spike-probe@git:20260709.3f87cf9

Pins git:20260709.3f87cf9 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
testdouble/han
Path
docs/plans/han-communication-plugin/artifacts/oi-3-spike/harness-skills/spike-probe/SKILL.md
Versions recorded
1
Latest version
git:20260709.3f87cf9, committed Jul 9, 2026
Size
582 bytes
Repository stars
334
License
MIT

Internal harness probe for the OI-3 readability-guidance spike. Use only when explicitly told to invoke spike-probe. Verifies that a freshly-created project skill renders into a subagent's context via the Skill tool.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Spike Probe

You have successfully rendered this skill into your context.

When you run this skill, do exactly this and nothing else:

1. Output the exact string `SPIKE_TOKEN_7Q2X4M` on its own line.
2. Output the exact string `PROBE_STEP_TWO_DONE` on its own line.
3. Report that both steps completed.

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add testdouble/han/spike-probe@sha256:a6fedc4bb85b9d8d

The line at the top of this page pins the label git:20260709.3f87cf9, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_4q3hylowwxlkvovj.svg)](https://markdownregistry.com/a/art_4q3hylowwxlkvovj)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Jul 9, 2026.

versioncommittedcommitsizeaudit
git:20260709.3f87cf9 latest2026-07-09 3f87cf9 582 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (582 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

testdouble/han · 334 stars · license MIT · pushed 2026-11-01 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_4q3hylowwxlkvovj
GET https://markdownregistry.com/api/v1/resolve?ref=testdouble/han/spike-probe
GET https://markdownregistry.com/api/v1/blob/a6fedc4bb85b9d8debbe581716fbf3d6cd67a159e438346654f6512d99cb0f1c

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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