hdd
hdd is a Decision records & design docs skill for AI agents, published by Kastalien-Research in the thoughtbox repository on GitHub. Skillspace rates hdd F (51/100) and it passed the safety scan; the rating is based on static analysis only.
Hypothesis-Driven Development — treat ADRs as the source of truth, not code. Form testable hypotheses, stage ADRs, implement to test them, validate against predictions, then accept or reject based on evidence. Prevents repeated mistakes by documenting failures. Enables agent-to-agent collaboration through explicit architectural reasoning. This is the canonical HDD entry point — it replaces the thin router at .claude/commands/hdd/hdd.md.
- Grade
- F
- Quality
- 51 / 100
- Safety
- Passed
- GitHub stars
- 64
Unproven: rated by static analysis only, not yet compared head-to-head.
Our two independent classifiers differ on this skill's category, so treat the placement as provisional.
This rating describes the version of the repository we crawled; it may have changed since, so go by its current files.
Our review
- Architecture
- 69 / 100
- Maturity
- Basic: a single SKILL.md
- Security scan
- No issues found
- License
- MIT
- Adoption
- Adopted by 0 other repositories, in 0 collections
Not checked yet
- Not judged on the rubric yet (not a contender in its category)
- No blind task eval yet
- Scope (portable / vendor / repo-internal) not assessed; only the top of each category is read for scope
- Sibling files (scripts, references) not fetched; security scan covers SKILL.md only
Skillspace indexes and rates this skill; it does not host or endorse it. Run third-party skills at your own risk.