Decides what
needs to happen.
Opus / reasoningA presentation for humans who ship
AI for
dummies.
You do not need an army of models. You need a system: one mind to frame the work, several hands to execute it, and a clean boundary between every task.
01strong model
for ambiguity
for ambiguity
03bounded workers
in parallel
in parallel
∞iterations
with evidence
with evidence
Read this as a route map, not a prompt recipe.
RULE ZEROStrong model for ambiguity.
Light model for bounded work.
Light model for bounded work.
A small fleetcoordination before parallelism
Decides what
→
agent/uiagent/testsagent/docsThe orchestrator preserves intent, writes small contracts, and gathers results that can be verified. It does not need to type every line.
Why the boundary mattersone vague task / three predictable failures
Every worker reads everything. Nobody knows which facts are load-bearing.
Two agents touch the same checkout. The fastest path becomes conflict resolution.
The diff is polished, but no one checks whether it solved the original problem.
The subagent loop
Click a phase.
See the handoff.
Delegation means moving one bounded task into a smaller context—not giving away responsibility.
What crosses contextsbrief → diff → evidence
| Package | Contains | Why it matters |
|---|---|---|
| Brief | goal, files, boundaries | stops the worker inventing the problem |
| Worktree | branch and isolated checkout | parallel edits do not collide |
| Checks | tests, build, criteria | turns “looks good” into evidence |
| Diff | small, reviewable change | integration and discard stay cheap |
Git worktrees
One branch
per hand.
A worktree is another directory linked to the same repository. Each agent gets its own checkout and index; history remains shared.
git worktree add ../task-ui -b agent/ui · git worktree add ../task-tests -b agent/tests · git worktree listREPOSITORYmainshared history
UIagent/uiisolated checkout
TESTagent/testsisolated checkout
DOCSagent/docsisolated checkout
Model routing
Do not pay for
reasoning where
you need rhythm.
WorkProfilePrompt shape
Planstrong / broadWhat changes? What can break?
Buildfast / focusedImplement this slice. Run these checks.
Exploreread-only / lightFind where this contract is used.
ReviewindependentDoes the diff satisfy the brief?
Skills
Write the right way
once.
A skill is a reusable procedure. It can carry instructions, references, scripts, and assets. It is not magical memory, and it does not replace acceptance criteria.
01 / trigger clearly02 / load detail on demand03 / return evidence
SKILL PACKAGE
SKILL.mdprocedure and limitsreferences/facts to consultscripts/repeatable checksassets/templates and examplesname: review-ui · check focus, mobile, reduced motion · run verification · return evidenceKeep learningsources bundled locally
Based on Claude Code, Codex, Git, and agent-workflow research. Open the reference bundle →