Skill files
Written conventions for each kind of task, so agents work the way the studio works.
pxl-stack
The agent harness PXL builds with: skill files, subagents and parallel worktrees on Claude Code.
Internal tool
The problem
Why this exists.
AI coding agents are fast and unreliable in the same breath. Left alone they drift from conventions, repeat mistakes and produce changes nobody has read.
The speed is only worth having if the output holds up in production.
What it does
How it works.
Subagents
Narrow agents for research, implementation and review, each with a focused brief.
Parallel worktrees
Independent changes run side by side in separate git worktrees, so they don't collide.
Human review
Nothing merges without a person reading the diff. Agents draft; the studio ships.
How it's built
Principles before features.
On Claude Code
Built around Claude Code's skills, subagents and worktree support.
Used on every build
Client projects and Labs products both run through it, which is how a Pilot Sprint lands in weeks.
Status
Internal tool
What's next
- Deciding whether to open-source it.
- Writing up the workflow in the Studio Log.
Want this for your business?
Everything we learn building Labs products goes into client work.