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
→
The 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.
Select a node to inspect its checkout, owner, and next action.
Model routing
Do not pay for
reasoning where
you need rhythm.
Choose a job to see why the model profile changes.
WorkProfilePrompt shape
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
name: review-ui · check focus, mobile, reduced motion · run verification · return evidenceCommon skillschoose behavior before model
The field kit
Different jobs.
Different instincts.
A skill changes how an agent approaches work. Some shape communication. Others enforce research, debugging, review, or completion discipline. Select one to inspect its operating rule.
ONE PRACTICAL LOADOUT
PLAN unlazy → BUILD ponytail-lite → DEBUG diagnosing-bugs → REPORT caveman
Keep learning12 new readings + primary docs
Go deeper with official documentation, production case studies, Medium, and practitioner workflows. Primary references → 12-part reading path →