chore(llm-router): bump iii-sdk to 0.20.0

[guibeira]

Bump iii-sdk to 0.20.0 + migrate observability to iii-helpers (iii-observability dep removed) per https://iii.dev/docs/upgrading/from-0-19-x.md. Build, fmt, clippy, tests green (61 tests); surface parity (13 functions + 3 triggers) verified 1:1. No import aliases. Note: provider-anthropic and provider-openai depend on this via path dep and will be rebased after this merges.

Summary by CodeRabbit

• Chores
  • Upgraded the router to the latest SDK version and aligned related integrations with the new API.
  • Updated error handling and channel/state wiring to use the newer shared interfaces across routing, catalog, config, and registry flows.
  • Refreshed tests and helpers to match the updated SDK behavior.

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Project	Deployment	Actions	Updated (UTC)
workers	Ready	Preview, Comment	Jun 25, 2026 4:47pm

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 87424336-5637-4191-bdba-7e28f9bf11af

📥 Commits

Reviewing files that changed from the base of the PR and between ed58ba4 and 5a240d5.

⛔ Files ignored due to path filters (1)

• llm-router/Cargo.lock is excluded by !**/*.lock

📒 Files selected for processing (24)

• llm-router/Cargo.toml
• llm-router/src/catalog/handlers.rs
• llm-router/src/catalog/reconcile.rs
• llm-router/src/catalog/store.rs
• llm-router/src/channels.rs
• llm-router/src/chat/abort.rs
• llm-router/src/chat/chat.rs
• llm-router/src/chat/complete.rs
• llm-router/src/chat/relay.rs
• llm-router/src/config/entry.rs
• llm-router/src/config/on_changed.rs
• llm-router/src/main.rs
• llm-router/src/register.rs
• llm-router/src/registry/availability.rs
• llm-router/src/registry/register.rs
• llm-router/src/registry/resolve.rs
• llm-router/src/registry/store.rs
• llm-router/src/routing.rs
• llm-router/src/state.rs
• llm-router/src/testkit/fake_channels.rs
• llm-router/src/triggers.rs
• llm-router/src/types/errors.rs
• llm-router/src/types/router.rs
• llm-router/tests/integration.rs

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📝 Walkthrough

Walkthrough

The llm-router crate upgrades iii-sdk to 0.20.0 and updates client, error, and channel import paths across router state, triggers, catalog, registry, config, chat, and integration tests.

Changes

llm-router SDK migration

Layer / File(s)	Summary
Shared SDK contract llm-router/Cargo.toml, llm-router/src/types/*	iii-sdk is bumped to 0.20.0, and shared router error helpers now target iii_sdk::errors::Error.
Runtime client wrappers llm-router/src/main.rs, llm-router/src/state.rs, llm-router/src/channels.rs, llm-router/src/testkit/fake_channels.rs	Worker setup, state access, channel helpers, and fake channel imports use IIIClient and the updated channel paths.
Router event triggers llm-router/src/triggers.rs	Trigger registration, unregistration, and router-event fan-out now use IIIClient and Error.
Catalog handlers and store llm-router/src/catalog/*	Catalog list/get/supports handlers, reconcile, and catalog persistence methods switch to IIIClient and Error.
Registry storage and resolution llm-router/src/registry/availability.rs, llm-router/src/registry/resolve.rs, llm-router/src/registry/store.rs	Provider listing, resolve/update_credential, and registry persistence methods switch to IIIClient and Error.
Registry registration wiring llm-router/src/register.rs, llm-router/src/registry/register.rs	Router and provider registration entrypoints accept IIIClient, return Error, and map schema/upsert failures through Error::from.
Config and routing llm-router/src/config/*, llm-router/src/routing.rs	Config entry reads and writes, config-change handling, and route error mapping use IIIClient and Error.
Chat pipeline and tests llm-router/src/chat/*, llm-router/tests/integration.rs	Chat abort, complete, orchestration, and integration test helpers switch to IIIClient, Error, and the updated channel imports.

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~60 minutes

Possibly related PRs

• iii-hq/workers#32: Introduces the earlier III/IIIError-based llm-router surfaces that this PR updates to IIIClient and iii_sdk::errors::Error.

Suggested labels

stacked

Suggested reviewers

• ytallo
• sergiofilhowz

Poem

A bunny hopped through code so neat,
with IIIClient carrots at my feet.
The router twitched, the tests all chirped,
and error paths no longer lurked.
I wiggle my nose: hop, hop, hooray! 🐇

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/sdk-0.20-llm-router

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[github-actions]

skill-check — worker

0 verified, 27 skipped (no docs/).

Layer	Result
structure	✓
vale	✓
ai	✓
render	✓

Four for four. Nicely done.