06 — STYLE

Measure the visual materials required to reconstruct the page without inventing appearance.

PARTIAL Partly built

Sampling exists, but the contract's evidence fields do not: sample denominators, per-palette confidence and sampling lineage are not emitted.

Deterministic Page model 0 archived step 06 of 26

Where this output sits

Source evidence›Candidate evidence›Human decision›Audit acceptance›Release›Production

Source evidence, candidate evidence, human decision, audit acceptance, release and production are six separate things. This step produces the highlighted one and nothing further.

Scope

Samples the original pixels inside accepted regions, with text and media masked out, to measure paper colour, box fills, borders, rule thicknesses and foreground colours — so the rebuild uses measured appearance rather than assumed appearance.

This role is allowed to

Use robust regional statistics
Return multiple supported palette values

How it works

fed by 04 MAP-REFINE

Inputs

Original pixelsAccepted physical regionsText/media/table exclusion masks

Deterministic Deterministic pixel sampler.

No internal sequence is documented for this step — only the contract above and below it. Nothing was invented to fill the gap.

Must pass

Sample denominators recorded
Confidence threshold met or HOLD
Every rendered fill traces to samples

passes →

Outputs

Paper and box-fill colorsForeground, border, rule and table palettesThicknesses, sample counts, confidence and lineage

hands off to TYPE · PROTECTION · SWEEP · PDF

fails →

HOLD

STYLE_LOW_CONFIDENCESTYLE_SAMPLE_CONTAMINATEDSTYLE_NO_SUPPORT

Nothing continues on a failed gate. Uncertainty becomes an explicit HOLD, and no later step may read an unanswered item as an accepted one.

Non-scope — what this role does NOT own

Guessing a fill or colour
Sampling text pixels as background
Renderer defaults as evidence

Explicitly forbidden

Guess a fill or color
Sample text pixels as background
Use renderer defaults as evidence

Dependencies and position

Starts: After physical regions and exclusion masks exist.
Previous step: 05 VISIBLE-CONTENT COMPLETENESS
Next step: 07 ROLE
Hands off to: TYPE, PROTECTION, SWEEP, PDF

Exact inputs

Original pixels
Accepted physical regions
Text/media/table exclusion masks

Exact outputs

Paper and box-fill colors
Foreground, border, rule and table palettes
Thicknesses, sample counts, confidence and lineage

Performer and AI/ML boundary

Performer: Deterministic pixel sampler.
Class: Deterministic
AI boundary: None.

Training information

Not a trained component. No model, no weights, no training corpus. Behaviour is fixed by code and configuration, and identical inputs must produce identical outputs.

Deterministic validation and acceptance gates

Sample denominators recorded
Confidence threshold met or HOLD
Every rendered fill traces to samples

HOLD and failure behaviour

Failure codes this step may emit:

STYLE_LOW_CONFIDENCE
STYLE_SAMPLE_CONTAMINATED
STYLE_NO_SUPPORT

Uncertainty becomes an explicit HOLD. Omission never converts uncertainty into acceptance, and no downstream step may treat an unanswered item as an accepted one.

Downstream handoff

TYPE, PROTECTION, SWEEP, PDF

Active tool

Status: Partial
Run / inspect: python tools/mechanical_pipeline.py
Input: original pixels + accepted regions + exclusion masks
Output: renderer.config.json palette block

Dependencies

Python 3.12 (NOT installed on this machine)
OpenCV
Original page pixels

Why this is the active version

The mechanical pipeline performs the paper and region fill sampling described in the V4 README step 3. It is the only implementation that measures colour from pixels rather than assuming it. It does not emit the full V8 STYLE contract — sample denominators, per-palette confidence and sampling lineage are missing — so it is PARTIAL.

Copied files — source receipt

File	Original SHA-256	Bytes	Copy
`mechanical_pipeline.py`	a8822c71887f0783…	13,507	verified
`renderer.config.json`	4f3a6d900f9fe2bd…	2,299	verified

2 file(s), all hash-verified against the original. Full detail in tool/SOURCE_RECEIPT.json. Copy-only: the historical source is never modified.

Archived versions

No superseded versions recorded for this role.

Known limitations

Sampling exists, but the contract's evidence fields do not: sample denominators, per-palette confidence and sampling lineage are not emitted.
Without denominators, a colour measured from three pixels is indistinguishable from one measured from three thousand.

Security and privacy

Operates on frozen local artifacts. No credentials required. No data leaves the machine.

Cost behaviour

No provider calls. No metered cost. Compute is local.

Copying a tool into this repository does not authorise running it, retraining it, calling a model, or processing a new issue. No paid call may be made without the owner's explicit authorisation and a hard cost cap.

Provenance

Registry: registry/roles.json (schema marsoom.e2t.roles.v1)
Derivation: 28 legacy roles - VER - HUMAN + REV = 27 active steps
Legacy role id: STYLE
Legacy source SHA-256: 6f5d5d7ed8869e45307424c2193f95ffab84abc44a6a188f5c7f98c2a48ec64d
Generated: 2026-09-04T22:13:12.433Z

Feedback and decisions

Feedback is recorded per source and never merged into an invented consensus. Where sources disagree, both positions stand and the owner decides.

Source	Events
Naser / owner Final authority. Overrides every other source.	none recorded
Codex / orchestrator Architecture and sequencing.	none recorded
Builder / designer Implementation reality and constraints.	none recorded
Independent reviewer Adversarial review of claims.	none recorded
Auditor Evidence verification against artifacts.	none recorded
Human REV reviewer Page-level truth from the review site.	none recorded

Recorded events

No feedback events recorded yet. The ledger exists and is append-only: feedback/FEEDBACK_LEDGER.jsonl.

Editing feedback is not possible: a change is a new event whose supersedes names the one it replaces, and the original stays exactly as written.

Generated from registry/roles.json by tools/build-reports.mjs. Do not hand-edit — edit the registry and rebuild.
Original page pixels are the visual authority. CAP owns the exact captured text.