Reconcile

Reconcile - code<->diagram @spec bijection validator

Two inputs: a diagram + the code it describes. One question: do the diagram's @spec values still equal the same-named code constants? Returns typed findings; marks, never blocks.

Sibling to Checkpoint: Checkpoint checks structure from the diagram alone; Reconcile checks values across diagram + code. Run both -> the diagram is a faithful, current spec.

Input: the @spec line

A node pins values on one line at the top of desc:

@spec hold_ms=800 fade_ms=200      <- Reconcile reads ONLY this line

• Prefix @spec (ASCII). key=value, key = the code constant name.
• Match is case/separator-insensitive: hold_ms = HOLD_MS = holdMs = hold-ms.
• Value: a number (800, 0x320) or a quoted string ("left").
• Free prose and a ~ tune: <range> line are for humans - never read.

Reconcile reads only the @spec line + named code constants. No geometry, no prose, no program behavior.

Findings

finding	severity	means
spec-drift	defect	@spec value != the code constant
spec-no-constant	defect	no same-named constant in the code
malformed-spec	defect	@spec line is not key=value
value-uncovered	uncovered	constant is computed, not a literal - no verdict
ambiguous-constant	uncovered	two constants normalize to one name
no-spec-lines	uncovered	nothing pinned - never a false "clean"

Anchored on the @spec line (not the code): drift is caught both ways, but a code constant on no @spec line is normal, not a finding. The extractor is a tolerant, dependency-free scan of const/let/var =, NAME =, NAME:, #define, :=, [modifiers] const|readonly TYPE NAME =, and C#/Unity bare field initializers [attr] public|private|static TYPE NAME = value (ScriptableObject tuning fields, no const/readonly) (JS/TS/Python/C/Go/C#/Java); numbers normalize (800 == 800.0 == 0x320, and a C#/Java numeric suffix is dropped so 0.2f == 0.2, 800L == 800). A Unity bare field is matched only with a field-only marker (an access modifier, [Attribute], or static), so a method-body local (int x = 5;) is never captured.

Output (same contract as Checkpoint)

{ findings:[{id,type,severity,note}], summary, attestation, clean }
self-check ran HH:MM:SS | N findings | M unchecked

clean only when N=0 AND M=0 - "checked & clean" never looks like "never checked". Human reads the marker; agent reads the type.

Use

node reconcile.mjs diagram.html code.js [more.js ...] [--json]

import { reconcile } from './reconcile.mjs';
reconcile({ nodes }, codeText);

Exit 1 on any defect (advisory - never blocks). Verify: node reconcile-selftest.mjs (48 checks). Example: ../../examples/example-workflow.html vs example-workflow.config.cs (clean, reconciles 0 findings).