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stryx:skill-forge

When creating or changing a skill, agent, slash command or hook, or a skill did not fire.

/stryx:skill-forge

Inside its piece: 12 specks, one for each file on its shelf. Its fourteen group-mates glow on the open book behind it. The light splits toward indigo, the band of Workflow.

In numbers

counted 2026-10-12 in the installed set
  • 10reference files
  • 12files in the skill
  • 216KB on disk
  • 6chapters
  • 2agents work by this book

Use it when

in the skill’s own words
    • when creating
    • editing
    • merging
    • testing or retuning a Stryx skill
    • agent
    • slash command or hook
  • When the user says
    • "create a skill"
    • "make a skill from this"
    • "turn this into a skill"
    • "skill factory"
    • "improve this skill"
    • "write a skill description"
    • "skill best practices"
    • "why didn't the skill fire"
    • "create an agent"
    • "write a subagent"
    • "agent factory"
    • "add a hook"
    • "hooks.json"
    • "new slash command"
  • When a purpose-built agent must be designed for a role no existing agent covers
  • When the same multi-step workflow has been done 2+ times
  • When scraped docs should become a skill
  • When a thin SKILL.md needs depth
  • When skills misbehave on a new model or a merged original has a new upstream version

Not for

another skill does it

What it covers

6 parts
  • the R10 build rules
  • tools/skills/validate.py and nothing_lost.py
  • baseline-first skill testing
  • descriptions and triggering
  • agent design
  • corpus retuning

On its shelf

12 files, 216 KB
  • references/10
  • SKILL.md1
  • evals/1

Inside the book

6 chapters, by title only
  1. Pick the mode
  2. The Stryx build rules (R10) - the card
  3. The core procedure (CREATE and EDIT)
  4. The gate tools
  5. Writing the description
  6. Writing the body

Its helpers

2 agents work by this book

Works with

the skills it names most

Claude loads it by itself when the moment comes; by hand, type the line at the top. It comes with the whole set: Installs all 94 skills, 32 agents and the brain program as one set. The skill’s own text is private source and is not shown here.