chore: add .obvious/ autobuild harness

[obvious-autobuild-staging]

Summary

Autobuild setup for andrewprocter/react-native-material-buttons. Generates the .obvious/ contract — agent guidance, codebase map, config, and a component manifest covering all 4 button components.

Files Generated

File	Purpose
.obvious/obvious.md	Agent guidance — verified commands, repo rules, snapshot ID, bibliography
.obvious/codebase-map.md	Folder-level directory guide (depth ≤ 2)
.obvious/config.yml	Autobuild config — base branch: master, merge method: squash
.obvious/design/components.md	Component manifest — 4 components with behavioral contracts and anti-patterns
.gitignore	Added .obvious-install/ exclusion

Source Files Scanned

• package.json — dependencies, scripts, metadata
• index.js — root entry point re-exporting all components
• readme.md — usage docs, property tables, installation instructions
• .eslintrc — lint configuration (babel-eslint, eslint:recommended, plugin:react/recommended)
• .gitignore, .npmignore — ignore rules
• src/components/button/index.js — Base Button component (PureComponent, Animated, Ripple)
• src/components/button/styles.js — Button StyleSheet
• src/components/raised-button/index.js — RaisedButton extending Button with elevation/shadow
• src/components/raised-button/styles.js — RaisedButton StyleSheet (platform-specific shadow/elevation)
• src/components/raised-text-button/index.js — RaisedTextButton extending RaisedButton with title
• src/components/raised-text-button/styles.js — RaisedTextButton StyleSheet (version-aware Android padding)
• src/components/text-button/index.js — TextButton extending Button with transparent background
• src/components/text-button/styles.js — TextButton StyleSheet
• example/package.json — example app dependencies (React Native 0.48.3)
• example/app.js — example app demonstrating button usage

Local Dev Validation Result

Result: partial

Step	Status	Notes
Dependency installation	PASS	bun install — 572 installs, no changes needed
Lint	PARTIAL	bun run lint runs but has 1 pre-existing error: componentWillReceiveProps deprecated since React 16.9.0 in src/components/button/index.js
Typecheck	N/A	No TypeScript in this repo
Tests	N/A	No test framework configured
App startup	BLOCKED	React Native toolchain (iOS/Android) not available in sandbox
Browser verification	BLOCKED	Requires RN simulator/emulator

Blocker: missing_toolchain — React Native iOS/Android toolchain not available in sandbox. Example app cannot be launched. This is expected for a component library — the lint gate is the primary verification surface.

Sandbox Snapshot

• Snapshot ID: isb7klly2m1xxzzi0vin5
• Captured: 2026-08-07T18:35:37Z
• Dev stack healthy: Yes (dependencies install, lint runs)
• E2B Template ID: 9varc9n907xp2yv1n3y0:default

Bibliography Scan Result

Product Atlas nodes upserted with file provenance — 5 nodes reused (file sources appended), 0 created:

Node	Type	Slug	File Source
react-native-material-buttons	product	react-native-material-buttons	(root — existing)
Button components	concept	button-components	(existing)
Base Button	feature	base-button	src/components/button/index.js, styles.js
RaisedButton	feature	raised-button	src/components/raised-button/index.js, styles.js
RaisedTextButton	feature	raised-text-button	src/components/raised-text-button/index.js, styles.js
TextButton	feature	text-button	src/components/text-button/index.js, styles.js
Press feedback & animation	concept	press-feedback-animation	src/components/button/index.js, raised-button/index.js

Component Manifest

Generated by component-manifest-generator skill v1.0.0. Written to .obvious/design/components.md (not a standalone artifact — the PR is the review surface).

• Design system: none (React Native component library, no web DS)
• Component root: src/components
• Story format: none
• Token source: none
• Components: 4 (Button, RaisedButton, RaisedTextButton, TextButton)
• Behavioral contracts: 16 total (4 per component, all ≥ 2 threshold met)
• Anti-patterns: 8 total (2 per component, all ≥ 1 threshold met)
• Quality gates: All passing

Blockers

Type	Description
missing_toolchain	React Native iOS/Android toolchain not available in sandbox — example app cannot be launched

No other blockers. The lint error is pre-existing code debt, not a setup issue.

Explicit Omissions

• No AGENTS.md generated or patched
• No .obvious/tools/ directory created
• No .obvious/system-prompt.md generated
• No .obvious-install/ directory in PR changeset (added to .gitignore)
• bun.lock not committed (pre-existing untracked file, not part of this setup)

Product Atlas Recommendation

The setup scan created seed-level Product Atlas nodes. For comprehensive coverage (features, surfaces, concepts, primitives, systems, and integrations with full provenance), load the product-atlas-collection skill.

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