## Summary
This PR makes agent execution a strict two-backend contract: API-backed
stages use Fabro-owned model/provider auth, while ACP-backed stages
launch a user-supplied stdio process that owns its own auth and tools.
That removes the legacy CLI backend and prevents ACP execution from
accidentally resolving or forwarding provider credentials.
## Changes
- Replaces the old `api`/`cli`/`acp` backend model with `AgentBackend {
api, acp }`, with `backend=\"cli\"` rejected and migrated toward
explicit ACP process configuration.
- Splits ACP process configuration into `acp.command` for shell command
strings and `acp.config` for JSON stdio configs, while rejecting legacy
`acp_command`.
- Restricts ACP to `agent` nodes and rejects API-only attributes such as
`model`, `provider`, `reasoning_effort`, `max_tokens`, and `speed` on
ACP nodes.
- Deletes the workflow CLI runtime, CLI credential resolver surface, CLI
live smoke tests, and `agent.cli.*` event handling.
- Updates ACP events and projections to report process identity
(`command`, optional `config_name`) rather than provider/model metadata.
- Updates import/stylesheet propagation, CLI workflow smoke coverage,
server steering tests, and web model extraction for the new
event/backend contract.
## Validation
- `cargo check -p fabro-auth -p fabro-acp -p fabro-workflow -p fabro-cli
--all-targets`
- `cargo nextest run -p fabro-auth -p fabro-acp -p fabro-validate -p
fabro-store -p fabro-workflow --lib`
- `cargo nextest run -p fabro-acp`
- `cargo nextest run -p fabro-cli --test it
workflow::acp::acp_backend_workflow`
- `cargo nextest run -p fabro-workflow --test it
codergen_without_backend_simulated`
- `cargo nextest run -p fabro-workflow --test it
import_e2e_through_engine`
- `cargo nextest run -p fabro-workflow --test it stylesheet_application`
- `cargo nextest run -p fabro-server
steer_with_active_acp_stage_returns_non_steerable_conflict`
- `cargo nextest run -p fabro-server
active_acp_stage_marker_clears_on_terminal_paths`
- `cargo nextest run -p fabro-types
agent_backend_accepts_only_api_and_acp`
- `cd apps/fabro-web && bun test app/routes/run-stages.test.ts`
- `cd apps/fabro-web && bun run typecheck`
- `cargo +nightly-2026-04-14 fmt --check --all`
- `cargo +nightly-2026-04-14 clippy --workspace --all-targets -- -D
warnings`
---
[](https://github.com/EveryInc/compound-engineering-plugin)
🤖 Generated with GPT-5 via [Codex](https://openai.com/codex)
---------
Co-authored-by: Peter Bell <4843+PeterBell@users.noreply.github.com>
## 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`
---
[](https://github.com/EveryInc/compound-engineering-plugin)
🤖 Generated with GPT-5 via [Codex](https://openai.com/codex)
---------
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
## Summary
Prepares the model catalog tests for catalog-only built-in providers so
a future provider can be added with just its catalog TOML.
## Changes
- Replaces the closed-enum round-trip guardrail with a catalog metadata
guardrail, allowing built-in TOML providers that do not have `Provider`
enum variants.
- Makes the all-model `fabro model` CLI tests assert stable table
structure instead of snapshotting every built-in catalog row.
- Renames synthetic custom-provider and missing-provider fixtures away
from provider names that can become real catalog entries.
## Verification
- `cargo +nightly-2026-04-14 fmt --check --all`
- `cargo nextest run -p fabro-model -p fabro-auth -p fabro-llm -p
fabro-server -p fabro-workflow -p fabro-config`
- `cargo nextest run -p fabro-cli cmd::model`
---
[](https://github.com/EveryInc/compound-engineering-plugin)
🤖 Generated with GPT-5 (unknown context, medium reasoning) via
[Codex](https://openai.com/codex)
---------
Co-authored-by: Jesse <606+jesseproudman@users.noreply.github.com>
## Summary
This is a cleanup pass over the configurable LLM provider/catalog work
from issue #210. It addresses reuse, quality, and efficiency findings
from the phase 0-9 review without changing the public provider settings
contract.
Notable changes:
- skip LLM client initialization during run preflight when the workflow
has no LLM nodes
- make preflight provider checks use alias-aware `Client::has_provider`
- resolve `run.model.fallbacks` through the catalog instead of the old
empty-key bridge
- paginate `/models` before cloning returned rows
- share label parsing, provider default-adapter lookup, enum
expected-value formatting, and billing token formatting helpers
- use catalog provider display names for OpenAI-compatible agent
profiles
- align process-env configured-provider discovery with
`EnvCredentialSource`
## Verification
- `cargo check -p fabro-config -p fabro-model -p fabro-auth -p
fabro-agent -p fabro-workflow -p fabro-server -p fabro-cli`
- `cargo nextest run -p fabro-config parse_labels_keeps_key_value_pairs`
- `cargo nextest run -p fabro-workflow resolve_fallback_chain_resolves`
- `cargo nextest run -p fabro-auth configured_providers`
- `cargo nextest run -p fabro-server list_models`
- `cargo +nightly-2026-04-14 fmt --check --all`
- `cargo +nightly-2026-04-14 clippy -p fabro-model -p fabro-auth -p
fabro-workflow -p fabro-server -p fabro-agent -p fabro-config -p
fabro-cli --all-targets -- -D warnings`
- `cd apps/fabro-web && bun test app/routes/run-billing.test.tsx`
- `cd apps/fabro-web && bun run typecheck`
- `git diff --check`
---------
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
## Summary
Finish phase 9 of the configurable LLM provider/model work by aligning
public docs, release notes, and guardrails with the implementation
already landed in phases 0-8.
- documents settings-driven providers/models, OpenAI-compatible gateway
examples, typed `extra_headers`, model `api_id`, controls, and per-speed
costs
- adds the 2026-05-13 changelog entry and provider string migration note
- updates the internal phase plan ledger to reflect current
implementation status
- adds a workspace policy test blocking direct production
`Catalog::builtin()` usage outside catalog owner/test code
- clarifies `Provider` as a built-in compatibility enum while open-ended
identity is `ProviderId`
## Verification
- `cargo nextest run -p fabro-dev --features dev --test it policy`
- `cargo dev docs check`
- `cargo nextest run -p fabro-model -p fabro-config -p fabro-auth -p
fabro-llm`
- `cargo build --workspace`
- `cargo nextest run --workspace` (5717 passed, 182 skipped, nextest
reported 1 leaky test)
- `cargo +nightly-2026-04-14 fmt --check --all`
- `cargo +nightly-2026-04-14 clippy --workspace --all-targets -- -D
warnings`
- `git diff --check`
## Summary
This PR advances the catalog-driven LLM work from fabro-sh/fabro#210 by
making the resolved model catalog the source of truth for provider
registration, request control validation, and billing identity. Runs now
preserve canonical provider/model/speed identity through pricing and API
responses instead of collapsing billing around provider API aliases or
model IDs alone.
## What Changed
- Register LLM provider adapters from the resolved catalog, including
custom OpenAI-compatible providers and their credential resolution
paths.
- Validate effective model request controls, including run-level
defaults and node overrides, before dispatching LLM requests.
- Add catalog-aware billing lookup that prices canonical `ModelRef`
values, uses base model costs for standard speed, applies per-speed cost
overrides, and returns an unknown estimate instead of silently billing
zero for unsupported combinations.
- Move Anthropic Opus fast-mode pricing into the built-in catalog for
`claude-opus-4-6` and `claude-opus-4-7`.
- Thread the injected catalog and effective speed controls through
workflow billing, including API-mode and CLI-mode handlers.
- Update billing APIs, server aggregation, generated clients, and the
web billing view to expose provider/model/speed billing identity and
keep standard and fast usage in separate rows.
## Notes for Review
Billing lookup intentionally uses canonical catalog model IDs. Provider
`api_id` substitution remains limited to provider request construction,
so aliases can be used on the wire without changing billing identity.
Event conversion paths that do not have catalog access now preserve
token counts with a null dollar estimate rather than falling back to the
bootstrap catalog.
## Verification
- `cargo build -p fabro-api`
- `cd lib/packages/fabro-api-client && bun run generate`
- `cargo +nightly-2026-04-14 fmt --check --all`
- `cargo +nightly-2026-04-14 clippy --workspace --all-targets -- -D
warnings`
- `ulimit -n 4096 && cargo nextest run -p fabro-model -p fabro-workflow
-p fabro-server -p fabro-api -p fabro-cli --no-fail-fast`
- `ulimit -n 4096 && cargo nextest run --workspace --no-fail-fast`
- `cd apps/fabro-web && bun run typecheck`
- `cd apps/fabro-web && bun test`
- `git diff --check`
---
[](https://github.com/EveryInc/compound-engineering-plugin)
🤖 Generated with GPT-5 via [Codex](https://openai.com/codex)
---------
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
## Summary
This PR moves Fabro’s provider/model catalog toward settings-driven
provider identity by replacing the closed provider schema at the
API/auth/model boundary with `ProviderId`, then loading built-in
provider and model metadata from embedded per-provider TOML files.
The immediate result is that built-ins now use the same settings-shaped
catalog data that custom providers will use later, while request-serving
paths still keep the existing bootstrap/default catalog behavior until
the resolved-catalog plumbing lands.
## Changes
- Replaces API-facing provider enum usage with string-backed
`ProviderId`, including OpenAPI/progenitor replacements and regenerated
TypeScript client models.
- Routes model, auth, billing, CLI, server, and workflow call sites
through provider IDs where they cross product identity boundaries.
- Builds `Catalog` from settings-shaped provider/model data with
validation for adapter keys, OpenAI-compatible `base_url`, duplicate
aliases, provider defaults, disabled entries, model controls, and
per-speed cost rows.
- Replaces `catalog.json` with embedded provider TOML files under
`lib/crates/fabro-model/src/catalog/providers/`.
- Adds an explicit `fabro_model::bootstrap_catalog` hatch for
setup/install paths and extends the dev policy test to keep bootstrap
access contained.
- Preserves public training and knowledge-cutoff labels in LLM model
settings while still accepting bare TOML dates.
## Verification
- `cargo nextest run -p fabro-model -p fabro-config -p fabro-api` — 416
passed
- `cargo nextest run -p fabro-dev --features dev
bootstrap_catalog_references_stay_in_allowlist` — 1 passed
- `cargo +nightly-2026-04-14 fmt --check --all`
- `cargo +nightly-2026-04-14 clippy --workspace --all-targets -- -D
warnings`
- `cargo build --workspace`
- `git diff --check`
---
[](https://github.com/EveryInc/compound-engineering-plugin)
🤖 Generated with GPT-5 via [Codex](https://openai.com/codex)
Remove redundant as_str/from helper methods on provider, reasoning, model-test, safe URL, and interview types. Migrate call sites to Display, IntoStaticStr, and FromStr while keeping wire-format coverage in tests.
Move secret redaction and DisplaySafeUrl into fabro-redact so credential handling has a narrow ownership boundary. Update direct consumers and docs to depend on fabro_redact instead of fabro_util::redact.
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.
The "Anthropic uses x-api-key header, everyone else uses Bearer" logic
was written three times: env_source (env-based construction), resolve
(vault-based construction), and provider_auth (CLI key validation).
Any future header rename would need three edits.
Add ApiCredential::from_api_key(provider, key) as a canonical
constructor. Each callsite now builds via the helper and overrides only
the fields specific to its path (env base URLs, vault-sourced org/project
IDs, codex mode, etc.).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
EnvCredentialSource::credential_for hardcoded "ANTHROPIC_API_KEY",
"OPENAI_API_KEY", etc. in match arms, while configured_providers read
the same names from Provider::api_key_env_vars(). Renaming any env var
required editing both sites.
Pull the primary key lookup from api_key_env_vars() so the Provider
enum owns the env-var-name → provider mapping. Provider-specific extras
(ANTHROPIC_BASE_URL, OPENAI codex mode, etc.) stay inline — they aren't
about the API key itself.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Enable clippy::allow_attributes_without_reason at the workspace level.
Add concise, callsite-specific reasons to existing allow attributes, including generated code paths.
Phase 2/3 of the std::fs lint initiative (Phase 1 refactors landed in
commit 9d1c0d98c).
clippy.toml additions (appended to disallowed-methods):
std::fs::read, read_to_string, write, read_dir, copy, canonicalize
std::fs::File::open, File::create, File::create_new
std::fs::OpenOptions::open
File::options was deliberately excluded — it returns an OpenOptions
builder with no syscall. OpenOptions::open is where the block happens.
Non-blocking std::fs items (metadata, exists, create_dir_all, remove_*,
rename, and all std::fs types) remain legal.
Annotation policy (per updated plan):
- Mixed async/sync production source: function- or statement-scoped
#[expect(...)] so future accidental Tokio-path regressions in the
same file still fire.
- Fully-sync production source, test modules, integration tests,
build.rs: file-level #![expect(...)].
- Every #[expect] has a specific reason identifying the sync context.
Annotations added in ~90 files across the workspace. Notable narrow
placements: fabro-server server.rs current_server_target,
build_disk_usage_response, create_test_app_state_with_session_key;
fabro-server install.rs read_to_string rollback snapshot;
fabro-sandbox local.rs list_recursive; fabro-agent cli.rs FOLLOW-UP on
the JSON-stdout writer; fabro-llm providers/common.rs FOLLOW-UP for
load_file_as_base64 (7 translator call sites; revisit if file:// URL
usage grows).
build.rs blanket allows: fabro-api/build.rs, fabro-util/build.rs.
Pre-existing unrelated nightly-clippy warnings fixed under scope:
fabro-sandbox sandbox_spec.rs (unused_imports, unused_async),
reconnect.rs (unused_variables, unused_async).
Verified: cargo +nightly-2026-04-14 clippy --workspace --all-targets
-- -D warnings passes; fmt clean; 4129/4131 tests pass (two known
flakes under parallel nextest load, both pass individually and are
unrelated to this change).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Implement the web-first install experience across the server, CLI, API spec,
web app, and packaged SPA assets.
This also removes test-side process env mutation by pushing env-dependent
decision points behind explicit helpers and test wiring.
- Remove EnvGuard and env-mutating test from fabro-auth (shared mutable state)
- Revert project.toml preserve=true that broke sandbox cleanup event tests
- Fix clippy: use is_some_and, scoped imports for StageStatus and render
- Update snapshot tests for new Run: ULID line and model_test output
- Fix preflight test assertion (name said "allows", asserted failure)
- Update cancel_queued_run test: cancelled runs now appear on board
- Add graph direction query param support to get_graph endpoint
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Derive configured providers from env and vault when choosing default
models during run creation and materialization, and thread the resolved
run provider through execution handlers instead of recomputing it.
Also return a user-facing error when fabro-agent cannot infer a default
model for the selected provider.
- Use short imports instead of absolute paths in test assertions
(fabro-config merge.rs, resolve/mod.rs)
- Remove needless raw string hashes where string body has no quotes
(fabro-config, fabro-workflow, fabro-server)
- Use struct initializer instead of field reassignment on Default
(fabro-types resolved.rs)
- Allow disallowed_methods for Command::new in test that exercises
a real login command (fabro-auth resolve.rs)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Align the OpenAI device-auth flow with the live Codex endpoints and
allow API-backed OpenAI resolution to fall back to the stored
openai_codex credential. This makes provider login work against the
current OpenAI response shape and lets doctor/workflows use the saved
credential without OPENAI_API_KEY in the environment.
Share provider display names and OAuth expiry helpers across auth, CLI,
and server code, and simplify the small match arms and helper plumbing
that full-workspace clippy surfaced during final verification.
