Module plan_diff 

Plan Diff — compare two exported execution plans.

Reads two plan JSON files (produced by axon run --export-plan) and produces a structured diff showing what changed between them:

• Added / removed / modified flows (units)
• Added / removed / modified steps within matching flows
• Changed prompts, step types, dependencies
• Changed tool registry
• Changed dependency graph (new parallel groups, unresolved refs)

Usage: axon diff plan_a.json plan_b.json axon diff plan_a.json plan_b.json –json

Exit codes: 0 — plans are identical 1 — plans differ 2 — I/O or parse error

Structs

DepsDiff

Dependency graph diff.

DiffSummary

Aggregate change counts.

FieldChange

A single field-level change.

PlanDiff

Top-level diff between two plans.

StepDiff

Diff for a single step.

ToolsDiff

Tool registry diff.

UnitDiff

Diff for a single execution unit (flow).

Enums

ChangeStatus

Change classification.

Functions

diff_plans

Compare two plan JSON values and produce a structured diff.

run_diff

Run the diff command. Returns exit code.