# Spike Probe

> 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.

- Skill: `testdouble/spike-probe` (Agent Skill)
- Install (CLI): `npx skillmds@latest add testdouble/spike-probe`
- Raw SKILL.md: https://api.skillmd.com/api/skills/testdouble/spike-probe/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: testdouble (https://skillmd.com/u/testdouble)
- Updated: 2026-08-19
- Page: https://skillmd.com/skills/testdouble/spike-probe

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# 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.