Source: https://guthlabs.ai/docs/field-guides/apple-capability-index/tools/

field guide / candidate

# Apple capability index — tools

The distinct tools record for Apple capability index. This page is proposal-only.

Status: **proposed**Lifecycle: **candidate**

## Record status

**Record ID**: field-guide:apple-capability-index

**Parent lifecycle**: candidate

**Page lane**: tools

**Lane lifecycle**: proposed

**Owner**: Tim

**Owner role**: Not separately recorded

**Owner status**: Not separately recorded

**Qualification result**: NOT RUN · held for evidence and human review

**Working browser surface:** [Field guides — documentation](<https://guthlabs.ai/docs/field-guides/>) — Inspect the guide and persist local checkpoints. This route is local-only; provider, credential, database, customer, publication, deployment, and production effects remain held.

## Authoritative tools lane tools and interfaces

### Canonical tools-page assignments

- **Notebook Notes** (interface · required) — Capture source-labelled capability observations, locators, provenance, revisions, and uncertainty; must not be used as proof of deployment or provider connection.

- **Notebook Projects** (interface · required) — Group capability candidates with related Apple implementation jobs and identify record ownership; must not imply an active project backend.

- **Notebook Approvals** (interface · required) — Gate qualification claims and preserve human review receipts; approval is local proposal state, not production authorization.

- **Notebook Agent Logs** (interface · required) — Record agent authority, evidence, current work, and failure states; must not claim external execution or connected platform effects.

- **Notebook To-dos** (interface · required) — Track dated discovery, validation, accessibility, and approval workbacks using due dates and completion state; must not be treated as hidden automation.

- **Finite State Machine Simulator** (provider · optional) — Model deterministic transitions among proposed, observed, needs-validation, approved, held, and rejected states; must not qualify Apple behavior or replace human review.

- **WCAG Contrast Ratio Checker** (provider · optional) — Check documented foreground/background contrast for any proposed index or review interface; must not certify complete accessibility or native Apple accessibility behavior.

- **Checksum Verifier** (provider · optional) — Verify copied source hashes against the stored SHA-256 receipt so capability evidence remains source-bound; must not establish source authority or authenticity.

Only the page's admitted lane is rendered as an assignment. Other lane inventories remain source records but are not merged here. Tool kind and required/optional status are preserved.

## Authoritative lane instrument assignments

### Canonical tools-page assignments

[finite-state-machine-simulatorrequired · Validate that capability records have deterministic, reviewable lifecycle transitions and explicit held or failure states.](<https://guthlabs.ai/docs/instruments/finite-state-machine-simulator/>)[wcag-contrast-ratio-checkerrequired · Check contrast values for the proposed index interface and record the result as an accessibility review receipt.](<https://guthlabs.ai/docs/instruments/wcag-contrast-ratio-checker/>)[checksum-verifierrequired · Verify source-file or excerpt hashes against the capability note's stored SHA-256 before review.](<https://guthlabs.ai/docs/instruments/checksum-verifier/>)

An instrument listed only for another lane does not become a tools-page assignment.

## Use boundary

- Confusing a native Apple API or surface name with an implemented or connected Guth feature.

- Treating local prototype routes as production behavior or as canonical Apple integration evidence.

- Overstating qualification when permissions, credentials, providers, databases, customer data, or publication effects are unverified.

- Using an educational instrument as an implementation validator or safety certification.

- Loss of source hashes, locators, provenance, or revision history causing evidence drift.

- Silent automation from todo recurrence or scheduled views.

- Accessibility claims based only on color contrast while omitting keyboard, VoiceOver, focus, labeling, and reduced-motion review.

- Duplicate capability records creating conflicting ownership or contradictory qualification states.

- Indexing private or held records into public-facing surfaces.

## Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

- `source_record:field-guide:apple-capability-index`

- `agents/index.html#tim`

- `Observed native contract: project_and_field_guide_collections`

- `Observed native contract: records`

- `Observed native contract: deadlines`

- `Observed native contract: web_boundary`

- `Observed app route: /app/notebook/field-guides/`

- `Observed app route: /app/notebook/approvals/`

- `Observed app route: /app/notebook/agent-logs/`

- `Allowed instruments: finite-state-machine-simulator`

- `Allowed instruments: wcag-contrast-ratio-checker`

- `Allowed instruments: checksum-verifier`