run_agent.py: delete the `# noqa: F401` re-export block (agent.process_bootstrap
OpenAI/_SafeWriter/_get_proxy_*, model_tools get_tool_definitions/
handle_function_call/check_toolset_requirements, FailoverReason,
_qwen_portal_headers/_routermint_headers, session_persistence names,
estimate_request_tokens_rough, ContextCompressor + friends, jittered_backoff,
prompt_builder names, message_sanitization names, tool_dispatch_helpers
names) — 41 names run_agent never used itself — and the `_STREAM_DIAG_HEADERS`
back-compat class alias (no in-tree reader). run_agent now imports only what
it uses (get_toolset_for_tool, is_local_endpoint, coalesce/uniquify tool-call
ids, cleanup_vm/get_active_env from terminal_tool_lifecycle).
agent/*: `_ra().X` late-binds that only reached a re-export now import the
defining module directly (agent_runtime_helpers -> process_bootstrap.OpenAI,
model_tools.handle_function_call, session_persistence._safe_session_filename_component;
agent_init -> model_tools.get_tool_definitions/check_toolset_requirements,
_lazy_headers("agent.client_lifecycle", ...) for qwen/routermint;
system_prompt -> agent.prompt_builder / model_tools directly, dropping its
own _ra() shim and the `_r` parameter threading). `_ra()` stays for
run_agent-resident names (logger, AIAgent, _hermes_home, _set_interrupt, ...).
toolsets.py: remove resolve_multiple_toolsets (shim-only, restored by
34abf954bd); tests/test_toolsets.py pins the same union behavior via
resolve_toolset over each name.
providers/__init__.py: drop the OMIT_TEMPERATURE re-export (no callers via the
package); ProviderProfile stays because __init__ uses it for annotations —
2 tests repointed to providers.base.
agent/iteration_budget.py: drop the "run_agent re-exports the class"
docstring pointer; 4 tests import IterationBudget from its home.
model_tools.py (arg_coercion names), agent/tool_executor.py, and
hermes_cli/cli_session_mixin.py repoints landed via a sibling commit on this
shared worktree.
Callers repointed: gateway/run.py, hermes_cli/cli_chat_turn_mixin.py,
hermes_cli/cli_tui_mixin.py, tui_gateway/session_workdir.py,
agent/transports/codex.py (one-line imports) + comment pointers in
tools/file_state.py, tools/schema_sanitizer.py, scripts/tool_search_livetest.py.
Tests: patch("run_agent.X") / monkeypatch.setattr(run_agent, "X") /
`from run_agent import X` -> defining module across 99 test files.
Reworks the salvaged OpenCode Free provider to match the tier's real
auth contract (verified live 2026-08-21): the Zen relay serves free
models ANONYMOUSLY and 401s any unrecognized bearer, so the provider now
declares no credentials at all and routes every model through the shared
keyless machinery from the Ox Alpha fix (empty Authorization default
header overriding the SDK bearer).
On top of the salvaged base:
- auth.py: no api_key_env_vars; drop the keyed-auth special case
- runtime_provider.py: restore the plain fail-closed path (opencode-free
never reaches it — the keyless runtime resolves first)
- models.py: opencode-free joins the opencode family (prefix stripping,
Zen endpoint routing incl. muse->responses); keyless predicate extended
with unsuffixed free slugs (big-pickle); free runtime pins EVERY
opencode-free model keyless; curated catalog replaces the models.dev
cost==0 filter (it lags reality: deepseek-v4-flash-free stayed 'free'
there after its promo ended and the relay began 401ing it — delisted)
- agent_runtime_helpers.py: replace the httpx transport-sharing auth-strip
wrapper with the shared header policy (no proxy-mount loss)
- model_setup_flows.py: skip the API-key prompt for opencode-free
- plugin profile: keyless headers, no env vars
- .env.example + providers.md: keyless docs (no OPENCODE_FREE_API_KEY)
- tests rewritten to the keyless contract, incl. catalog-membership
invariant (every curated model must satisfy the keyless predicate)
E2E: full AIAgent turns with zero keys complete on x-preview-f-free via
provider opencode-free and alias 'free', incl. a real terminal tool
round-trip; muse routes to /v1/responses; picker lists 8 keyless models.
Adds an OpenCode Free provider plugin. Free model discovery uses models.dev
(cost.input == 0 AND status != "deprecated"), matching opencode CLI's exact
filter logic.
The free tier requires a real account API key and throttles third-party
clients by User-Agent:
- With OPENCODE_FREE_API_KEY configured, the key is sent as a Bearer token
and requests identify as "opencode/latest".
- Without a key, the keyless fallback strips the SDK's always-injected empty
Authorization header and still sends the opencode User-Agent.
- The credential resolver no longer blanks OPENCODE_FREE_API_KEY
unconditionally (the stale keyless-tier assumption), and credential-pool
exhaustion no longer surfaces the misleading "Set OPENCODE_FREE_API_KEY"
message.
Co-authored-by: Jean-François <jfm@laposte.net>
Signed-off-by: Rudraksh Chahal <131520192+rudrakshchahal@users.noreply.github.com>
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