## Summary
Moves provider-specific facts out of `AdapterKind` metadata and into
provider catalog data, leaving adapters responsible for runtime protocol
behavior. This makes providers that share an adapter mostly TOML-driven
while still surfacing adapter construction failures during readiness
checks.
## What Changed
- Provider TOML now owns auth mode, API-key/header policy, billing
policy, agent profile, base URLs/env overrides, extra headers, and probe
markers.
- Auth, install, config, diagnostics, and server flows resolve provider
credentials from catalog auth config, including API-key, header-only,
and no-auth providers.
- LLM client registration now reports adapter construction failures,
validates final adapter requests before HTTP dispatch, and preserves
custom primary auth headers.
- Billing and docs now use provider-owned billing policy instead of
adapter metadata, and the old adapter metadata surface is removed.
## Reviewer Notes
OpenAI-compatible `base_url` validation now happens during
adapter/client registration rather than catalog build. That keeps
catalog parsing adapter-agnostic while still letting readiness and model
listing reflect providers that cannot register.
## Verification
- `cargo check -p fabro-model -p fabro-auth -p fabro-llm -p fabro-server
-p fabro-cli`
- `cargo nextest run -p fabro-llm -- adapter_registry`
- `cargo nextest run -p fabro-model -- catalog`
- `cargo nextest run -p fabro-auth -- api_key`
- `cargo nextest run -p fabro-server -- install`
- `cargo +nightly-2026-04-14 fmt --check --all`
---
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🤖 Generated with GPT-5 via [Codex](https://openai.com/codex)
---------
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Use a lightweight basic probe target for preflight instead of fabricating catalog models, run configured model probes with bounded concurrency, and keep expensive model choices opt-in for defaults and live tests.
GPT-5.5 (released 2026-04-23) replaces 5.4 as the default OpenAI model.
Live integration tests confirm both new IDs respond on the OpenAI API;
they require default temperature like other reasoning models.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Add fabro-static::EnvVars as the shared registry for fixed environment variable names and migrate env reads, clap env bindings, and subprocess/test allowlists to use it.
Add clippy bans for raw std::env lookup APIs so future dynamic env facades must be documented explicitly.
No production deployments exist, so there's no need for migration shims.
Remove all six backwards-compat type aliases (AgentError, SdkError,
CoreError, GraphvizError, StoreError, FabroError) and migrate ~880
callsites to use the canonical Error name directly within each crate,
or qualified imports (e.g., `use fabro_llm::Error as LlmError`) for
cross-crate references. Also fix a pre-existing absolute-path clippy
lint in fabro-server error.rs.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replace the overlapping usage and cost model with canonical billing
primitives centered on ModelRef, ModelHandle, TokenCounts, and
BilledModelUsage. This also renames the public API and web surface from
usage to billing, removes compatibility aliases, and normalizes provider
usage adapters onto the shared billing vocabulary.
Integrate twin-openai (fake OpenAI server) into the workspace and wire
it into the e2e_test macro so OpenAI tests can run without real API
credentials. The twin server starts in-process via OnceLock on first use
and provides per-test isolation through bearer-token namespacing.
Changes:
- Add Twin as default TestMode, replacing Off (gating now via #[ignore])
- Extend #[e2e_test] macro with `twin` requirement for twin-only,
live-only, and dual-mode (twin + live) test gating
- Add e2e_openai!() macro returning (base_url, api_key)
- Convert openai_complete and openai_gpt_5_3_codex_complete to dual-mode
- Add new openai_server_error twin-only test with scripted 500 error
- Standardize axum 0.8 as workspace dependency across all crates
- Relax twin-openai ResponsesRequest to accept unknown fields via flatten
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
