Delegation Fit
Some tasks cost more to review than to write.
The Pattern
Section titled “The Pattern”- Before prompting, decide per task: delegate, pair, or write by hand
- Keep decisions that belong to a human with the human; decide first, then delegate the rest
- Brief delegated work in one message with explicit non-goals
When to Use
Section titled “When to Use”- Everyday interactive work, before the first prompt
- A feature with parts of different difficulty
- Output from past tasks of this kind needed heavy correction
When Not to Use
Section titled “When Not to Use”- Multi-hour or unattended runs; use Spec, Then Build
- Pure exploration, where the model’s interpretation is the point
Fit Signals
Section titled “Fit Signals”For delegating
- The outcome is checkable by a command
- The repo has an exemplar to mirror
- Boilerplate, broad search, or mechanical change
- Reversible
Against delegating
- You already hold the full solution and typing is the only cost
- No check exists, so you become the check (Verification Loops)
- Tacit design judgment that is hard to write down
- Review would take longer than writing
These signals are judgment calls and shift as models change. Reassess them on the Deliberate Currency cadence.
Keep With the Human
Section titled “Keep With the Human”- Architecture choices
- Ambiguous requirements
- Anything Human in the Loop lists under low confidence
- Decide these first; then delegate the work they unblock
Middle Mode: Pair
Section titled “Middle Mode: Pair”- The model explores, drafts tests, or lists edge cases
- The human writes the core logic
- Useful when the core needs tacit judgment but the edges are mechanical
Sizing
Section titled “Sizing”- One concern per request
- One reviewable diff per request (Reviewable Output)
- The brief fits in one message, with no mid-flight clarification (Agent Architecture)
Brief Shape
Section titled “Brief Shape”Extends the problem prompt in Problem Before Prescription for small delegated tasks. It is a small-task subset of the Spec Fields in Spec, Then Build.
- Goal: the problem, not the fix
- Constraints: what must not change
- Non-goals: what not to touch or start (the spec’s “Out of scope”)
- Mirror: an existing file or function to follow
- Done: the command that proves it
- Ask: state assumptions or ask questions before editing
Prior art: Claude Code best practices recommend pointing the model at an existing pattern in the codebase to follow.
Worked Example
Section titled “Worked Example”- Illustrative case (composite, not a transcript)
- Feature: add CSV export to the orders report
Split
| Part | Mode | Why |
|---|---|---|
| Export format and column contract with the finance team | By hand | Ambiguous requirement; a human decision |
| Streaming large result sets without loading all rows | Pair | Model drafts edge-case tests; human writes the streaming core |
| Handler, route, and auth wiring | Delegate | GET /reports/{id}/pdf is an exemplar; tests check it |
Vague prompt
- “Add CSV export to the orders report”
- Outcome: one large diff; invented columns, a new CSV library; five correction turns
Brief
- Goal: finance needs the orders report as CSV
- Constraints: existing report API unchanged; columns exactly as in
docs/orders-export.md - Non-goals: no streaming changes; no new dependencies
- Mirror: follow
GET /reports/{id}/pdffor route, auth, and tests - Done:
make testpasses, including newtest_orders_csv_columns - Ask: list assumptions before editing
- Outcome: one question about date format, answered; one correction, a header casing
- Minutes (illustrative): both rows delegate the same slice, the CSV route, column mapping, and its test; by hand is that same slice typed directly
| Path | Minutes | Against 30 by hand |
|---|---|---|
| Vague prompt | 1 prompt + 44 review and correction = 45 | 15 worse |
| Brief | 7 brief + 9 review = 16 | 14 better |
Anti-patterns
Section titled “Anti-patterns”- Delegating the architecture decision, then correcting the architecture in review
- Delegating work you could type faster than you could brief
- A brief with no non-goals, so the diff grows past the task
- Fit decided once and never revisited as models change
Related
Section titled “Related”- Correction Diagnosis: task fit is the first link in the cause chain
- Task Routing: once delegated, which tier does the work
- Spec, Then Build: the full spec for long runs
- Problem Before Prescription: the brief starts from the problem
- Checkpoint Gates: human decisions during a run, not before it
- TTV: human review minutes count in the cost of a win
- Few-Shot Examples: code exemplars as the mirror
