Sub-function
Build
Owns change work end to end inside Engineering. Runs 3 lines across 16 stations, drains the repeatable share into no shared tower, and holds 4 human gates.
Estate rating
A
75 / 100
Code generation and dependency maintenance are near-touchless. A human still approves every merge into a protected branch — that gate is the whole control.
Agents
8
Lines
3
Units / wk
15,527
Timetable vs actual
19.7h → 22.6h
Cost / unit
$15
was $40
Run-rate saving
$20.3M
annualized at this volume
The 8 agents running this sub-function
Grouped by what they are for, not by where they sit. The agent org is process-shaped.
Build Orchestrator
Owns the build lane end to end. Sequences the other agents, holds the timetable, and decides what surfaces to a human.
ceiling A4 · escalates to Escalates to Director, Platform Engineering when the unit falls outside the decision envelope or confidence drops below the floor.
Specification Agent
Executes the build step it owns, posts its evidence, and hands the unit to the next stage.
ceiling A4 · escalates to Escalates to Director, Platform Engineering when the unit falls outside the decision envelope or confidence drops below the floor.
Code Generation Agent
Executes the build step it owns, posts its evidence, and hands the unit to the next stage.
ceiling A4 · escalates to Escalates to Director, Platform Engineering when the unit falls outside the decision envelope or confidence drops below the floor.
Scaffold Agent
Executes the build step it owns, posts its evidence, and hands the unit to the next stage.
ceiling A4 · escalates to Escalates to Director, Platform Engineering when the unit falls outside the decision envelope or confidence drops below the floor.
Refactor Agent
Executes the build step it owns, posts its evidence, and hands the unit to the next stage.
ceiling A4 · escalates to Escalates to Director, Platform Engineering when the unit falls outside the decision envelope or confidence drops below the floor.
Documentation Agent
Executes the build step it owns, posts its evidence, and hands the unit to the next stage.
ceiling A4 · escalates to Escalates to Director, Platform Engineering when the unit falls outside the decision envelope or confidence drops below the floor.
Dependency Update Agent
Executes the build step it owns, posts its evidence, and hands the unit to the next stage.
ceiling A4 · escalates to Escalates to Director, Platform Engineering when the unit falls outside the decision envelope or confidence drops below the floor.
Build Challenger Agent
Adversarial reviewer for build. Argues the opposite case on every position and flags where the evidence does not carry the claim.
ceiling A4 · escalates to Escalates when a ratified position is still running against a break condition it flagged.
Estate rating breakdown
Seven control dimensions. Judgment readiness runs against autonomy on purpose.
People
What the humans stopped doing, and what they do now.
Redeployed into customer-facing escalation ownership.
Lines running in this sub-function
Each line is a workflow. Click a line to walk it station by station.
Strategy positions this sub-function holds
An agent that only executes is a robot. These are the calls it made, the argument against each one, and what would prove it wrong.
Build Operating Position
Draftv4Is the current cost per change defensible against external comparators once inference spend is counted in full?
Hold the ceiling at A4 for build. Code generation and dependency maintenance are near-touchless. A human still approves every merge into a protected branch — that gate is the whole control. Raise it only after two consecutive quarters where the override rate stays under five percent and every override has a written cause.
confidence
87%
The challenge — Build Challenger Agent
Build Challenger Agent argues the recommendation leans on 5 quarters of data from a period with no volume shock. The confidence band overlaps the alternative, and the position does not say what it would take to be wrong. Recorded as a dissent, not a block.
Break conditions
- ·Override rate rises above 10 percent for two consecutive months
- ·Cost per change stops falling while volume keeps rising
- ·A control failure in this lane reaches a customer or a regulator
Evidence gaps
- ·No external comparator on a like-for-like unit definition
- ·Exception cases under $29k are sampled, not fully measured
| Alternative considered | Cost | Risk | Verdict |
|---|---|---|---|
| Hold the current position | $374k run rate | Known and priced. Cedes ground if comparators move faster. | live |
| Raise the ceiling one level now | $1480k to build controls | Override rate is 10 percent; raising the ceiling before that settles imports the error into production. | rejected on evidence |
| Move the exception tail to the spine | $378k transition | Loses local context. Rework risk on the cases that are hardest to recover. | under review |
Policy register
The rules the agents above are bound by. Version, owner, approver, and the agents each rule constrains.
| Ref | Rule | Scope | Owner agent | Approved by | Version | Status |
|---|---|---|---|---|---|---|
| EN3-POL-200 | Build Decision Envelope Agents in this lane may act without a human when the change sits inside the stated value, risk and confidence envelope. Outside it, the unit holds at a gate with a named approver and a running clock. binds 6 agents · Global | envelope | Build Orchestrator | Director, Platform Engineering | v3.2 | Active |
| EN3-POL-201 | Build Evidence Standard Every autonomous decision writes inputs, the rule version applied, the model and prompt version, the output and a reversal path. An action with no evidence record is treated as a control failure, not a fast decision. binds 6 agents · Global | evidence | Build Orchestrator | Director, Platform Engineering | v1.0 | Active |
| EN3-POL-202 | Build Escalation Rule Escalation is mandatory when confidence falls below the floor, when two options sit inside the confidence band, or when a break condition on a ratified position fires. Director, Platform Engineering owns the response clock. binds 6 agents · Global | escalation | Build Orchestrator | Director, Platform Engineering | v2.9 | Active |
| EN3-POL-203 | Build Autonomy Ceiling The ceiling for this lane is 86 on the platform scale. Code generation and dependency maintenance are near-touchless. A human still approves every merge into a protected branch — that gate is the whole control. The ceiling is a governance decision, not a technical limit, and only Director, Platform Engineering can propose moving it. binds 6 agents · EU · UK | ceiling | Build Orchestrator | Director, Platform Engineering | v5.0 | Active |