scenario
Generate comprehensive edge cases and test scenarios by decomposing a feature or file across 12 risk dimensions, or blast-radius review a change with --diff: what breaks beyond the diff, proven by running real code. Use for pre-implementation risk discovery, QA planning, regression design, exhaustive edge-case enumeration, and change-safety review. Triggers: 'edge cases for X', 'what could break', 'blast radius', 'what could this break beyond the diff', 'test scenarios', 'QA plan', 'risk discovery', 'enumerate failure modes'.
Target: Design & content creation. Automatically collected · unverified.
Excerpt from the author’s documentation
Extracted from a fixed version of SKILL.md in its original language. This is the author’s documentation; installation, compatibility and runtime results have not been verified by this site.
Read the original English text
Topics in the source
- scenario
- What this is - and isn't
- Modes
- Workflow
- Output shape
- Blast-radius mode (--diff)
- Limitations (honest)
Decompose a feature across 12 risk dimensions → exhaustive, severity-tagged edge cases. | Skill | Does | |---|---| | vd:cook --tdd | Runs the tests (tests-first), reports pass/fail | | vd:brainstorm | Explores solution options | | scenario | Enumerates edge cases & failure modes (default), or proves a change's safety fact by running code (--diff) - never fixes | Default-mode output is an input to test-writing / QA / vd:plan risk sections - not executable tests. --diff is the exception: it writes and runs a small proof script, because a blast-radius verdict without executed evidence is just a persuasive paragraph. | Mode | Behaviour | |---|---| | (default) | One pass over all 12 dimensions → scenario list. | | --saturation | Iterative rounds until coverage is exhausted (2 consecutive zero-new rounds) or --iterations cap (default 5). | | --diff [ref] | Blast-radius review of a change: what breaks beyond the diff, with the one safety fact proven by running real code. Default ref: merge-base with the default branch (uncommitted changes included). | --iterations only applies with --saturation (default mode is a single pass). 1. Read the target - the file/function or feature description.
This is an excerpt. Refer to the complete source and its current requirements.
- Source repository
- vanducng/skills
- Source file
- skills/scenario/SKILL.md
- Fixed revision
- c20411b8df8f821988c87689f6aefe142b6f9025
Sources and evidence
This record was collected automatically. Its documentation, suitability and runtime behavior have not been manually verified.
Author: vanducng/skills · original repository metadata. Documentation review: Not reviewed. Last source check: 2026-11-11T14:02:27.521Z.
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License and attribution
MIT. Third-party content and copyright remain with their authors. Refer to the original license and terms.
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