# Boundary Probing

> Map parameter space, generate extreme values, test at boundaries, detect breakpoints, synthesize validity envelope.

- Skill: `yogsoth-ai/boundary-probing` (Agent Skill)
- Install (CLI): `npx skillmds@latest add yogsoth-ai/boundary-probing`
- Raw SKILL.md: https://api.skillmd.com/api/skills/yogsoth-ai/boundary-probing/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: yogsoth-ai (https://skillmd.com/u/yogsoth-ai)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/yogsoth-ai/boundary-probing

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# Boundary Probing

## Orchestration Steps

1. Receive claim and parameter context from strategy
2. Dispatch `parameter-space-mapping` to identify all dimensions
3. For each dimension, dispatch `extreme-value-generation`:
   - Minimum, maximum, zero, negative, overflow
   - Type boundaries (empty, null, singleton, infinite)
4. Dispatch `breakpoint-detection` at each extreme value
5. Record pass/fail for each probe point
6. Dispatch `validity-envelope-construction` to synthesize boundaries

## Subagents

- parameter-space-mapping
- extreme-value-generation
- breakpoint-detection
- validity-envelope-construction

## Termination Conditions

- All dimensions probed at all boundary values (complete)
- Breakpoint found in critical dimension (early report)
- Budget exhausted (report partial envelope)
- Dimension count exceeds budget (prioritize by sensitivity)

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## Available SOPs

Optional, no fixed order; the final leaf is always a sop.

| SOP | When to use |
| --- | --- |
| breakpoint-detection | Test a claim at extreme parameter values and detect the precise point where it breaks down. |
| extreme-value-generation | Generate boundary and extreme test values for a given parameter dimension to stress-test claims. |
| parameter-space-mapping | Identify all parameter dimensions along which a claim's validity might vary. |
| stress-test-validity-envelope-construction | Synthesize breakpoints across dimensions into a coherent validity envelope for a claim. |

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