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Owner retest (2026-10-27): Gemini read examples passkeys (148 KB: files duplicated in text + structuredContent) and photos, ran create_app, made zero commits, and told the user it had built sign-in and the photo feed. Weak models won't hand-copy 15 files plus 3 patches; Outer now does it.
Apply enginecrates/outer/src/examples/apply.rs (pure): copies example files, renumbers db/migrations after the app's highest number, inserts nav items + Lucide icon imports at // outer:nav-items / // outer:nav-icons, bindings at // outer:bindings, resolves requires (photos → passkeys). Validate-then-write; conflicting files and missing markers refuse with the manual step. Byte-identical with outer-templates' TS engine: tests/fixtures/apply/ is a verbatim copy of scripts/apply-fixtures/ and shared_golden_cases_match_the_typescript_engine runs it.
add_example {app, name} (61st tool): one commit through the commit path (same gates, quota, awaited deploy). Re-applying is a no-op refusal.
create_app {examples}: applied into the seed tree, so one commit and one deploy. Without examples the result says nothing the user asked for exists yet.
examples {name}: README + metadata + file list (~6 KB); contents only with files: true, never duplicated.
dependencies dropped from the example contract (unused; an order-preserving package.json edit isn't possible without crate-wide preserve_order).
INSTRUCTIONS: "Start with create_app {examples} or add_example, then customise with commit…"
…#apply-examples)
One tool call turns an app into a working feature: create_app seeds
examples before the first commit; add_example resolves requires,
copies files, merges nav/bindings/deps and commits through the same
commit + gate + deploy path as commit. examples {name} now returns the
README and file list (contents with files: true); contents travel in
the text block only, never duplicated.
Rust engine crates/outer/src/examples/apply.rs follows the contract
exactly; golden fixtures in crates/outer/tests/fixtures/apply/ pin the
formatting rules for the TS engine to match.
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crates/outer/src/mcp/tools/add_example.rs
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Walkthrough
The pull request adds an example format with requirements, navigation, and resource bindings; a planner and MCP tool to apply examples; and support for seeding examples during app creation. It also updates example inspection output and agent guidance.
Changes: Example application lifecycle
Layer / File(s)
Summary
Example metadata and validation crates/outer/src/examples/mod.rs
Examples now use requires, navigation entries, and resource bindings instead of package dependencies. The loader validates this metadata and skips invalid examples.
Apply planning and golden cases crates/outer/src/examples/apply.rs, crates/outer/src/examples/apply/tests.rs, crates/outer/src/templates.rs, crates/outer/tests/fixtures/apply/*
The planner resolves requirements, applies files, renumbers migrations, merges navigation and bindings, and refuses conflicts. Unit tests and golden fixtures cover these behaviors.
The new add_example tool commits and deploys example changes. create_app can seed examples into its initial commit.
Example inspection and workflow guidance crates/outer/src/mcp/tools/examples.rs, crates/outer/src/examples/mod.rs, crates/outer/src/mcp/mod.rs, crates/outer/src/mcp/tools/account.rs, crates/outer/src/mcp/tools/open_app.rs, crates/outer/src/mcp/registry.rs, web/docs/agents/start-here/*, web/docs/reference/tools.md
Example inspection defaults to README and file-list output, with optional file contents and truncation reporting. MCP guidance and documentation describe listing, inspection, seeding, and application workflows.
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Actionable comments posted: 2
🪄 Fix comments: Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @crates/outer/src/mcp/tools/add_example.rs:
- Line 75: Update the add_example flow to capture one head SHA before reading
the tree, read and list files at that SHA, and return the SHA from head_tree.
Set the commit request’s base to that captured SHA instead of None so the commit
is rejected if the main head changes.
Review comments at @web/docs/agents/start-here/examples.md:
- Around line 13-17: Repin the photos example and app starter templates after
the outer-templates#7 changes, ensuring photos declares its required bindings
and the starter includes the navigation and bindings markers used by plan_apply.
Run outer templates sync before documenting add_example or create_app as a
ready-to-use flow.
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CodeRabbit round: (1) add_example now reads its tree at one head sha and commits with base: Some(head), so a concurrent commit makes it refuse with conflict instead of overwriting (baf64fb). (2) Templates repinned to merged outer-templates#7 5ff03ff (3414ef6) and synced on prod.
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Owner retest (2026-10-27): Gemini read
examples passkeys(148 KB: files duplicated in text + structuredContent) andphotos, rancreate_app, made zero commits, and told the user it had built sign-in and the photo feed. Weak models won't hand-copy 15 files plus 3 patches; Outer now does it.crates/outer/src/examples/apply.rs(pure): copies example files, renumbersdb/migrationsafter the app's highest number, inserts nav items + Lucide icon imports at// outer:nav-items/// outer:nav-icons, bindings at// outer:bindings, resolvesrequires(photos → passkeys). Validate-then-write; conflicting files and missing markers refuse with the manual step. Byte-identical with outer-templates' TS engine:tests/fixtures/apply/is a verbatim copy ofscripts/apply-fixtures/andshared_golden_cases_match_the_typescript_engineruns it.add_example {app, name}(61st tool): one commit through thecommitpath (same gates, quota, awaited deploy). Re-applying is a no-op refusal.create_app {examples}: applied into the seed tree, so one commit and one deploy. Without examples the result says nothing the user asked for exists yet.examples {name}: README + metadata + file list (~6 KB); contents only withfiles: true, never duplicated.dependenciesdropped from the example contract (unused; an order-preserving package.json edit isn't possible without crate-widepreserve_order).create_app {examples}oradd_example, then customise withcommit…"Needs ryuzcorp/outer-templates#7 merged, then repin
TEMPLATES_SHAhere.Live on prod (
outer:dd7acea, templates synced to #7 head870bae1), throwaway account, now deleted:create_app {name: "Familygram", examples: ["photos"]}→ one call, 41 s, success, passkeys pulled in. Playwright + CDP virtual authenticator 11/11 (sign-up, sign-out, members gate, sign-in, upload in feed, image 200 png + ETag); signed-out upload 403; console clean.add_example photos(23 s, success,/sign-in/photos200,/members302); re-apply → "already applied".fmt, clippy,
cargo test(1063 + 7) green.Summary by CodeRabbit