d9d0bf4b79
## Description Adds **Cortex Code (CoCo)** — Snowflake's AI coding CLI — as a first-class headroom provider alongside Claude Code, Codex, and Cursor. Cortex Code routes requests to Snowflake's Cortex inference endpoint via the OpenAI-compatible pipeline. This PR adds the provider slice, registers it under `"cortex-code"`, and ships tests that measure real token savings against `claude-sonnet-4-6`. Closes # ## Type of Change - [x] New feature (non-breaking change that adds functionality) - [x] Documentation update ## Changes Made - `headroom/providers/cortex_code/__init__.py` — new provider package - `headroom/providers/cortex_code/runtime.py` — `proxy_base_url()`, `build_launch_env()`, `default_api_url()` (reads `SNOWFLAKE_HOST` / `SNOWFLAKE_ACCOUNT`) - `headroom/providers/cortex_code/install.py` — `build_install_env()` sets `OPENAI_BASE_URL`; `render_setup_lines()` - `headroom/providers/install_registry.py` — registers `"cortex-code"` in `_ENV_BUILDERS` - `tests/test_provider_cortex_code.py` — 15 unit tests - `tests/test_cortex_code_compression.py` — 5 compression benchmark tests (no API key needed) - `tests/e2e_cortex_savings.py` — real REST API benchmark; reads `SF_CONN`/`SF_HOST` from env, no hardcoded identifiers - `docs/cortex-code.md` — integration guide (quick start, library mode, auth, limitations) - `README.md` — Cortex Code row added to agent compatibility matrix ## Testing - [x] Unit tests pass (`pytest`) - [x] Linting passes (`ruff check .`) - [x] Type checking passes (`mypy headroom`) - [x] New tests added for new functionality - [x] Manual testing performed ### Test Output ```text $ uv run --with pytest pytest tests/test_provider_cortex_code.py tests/test_cortex_code_compression.py -v tests/test_provider_cortex_code.py::test_cortex_code_proxy_base_url_is_openai_compatible PASSED tests/test_provider_cortex_code.py::test_cortex_code_proxy_base_url_uses_given_port PASSED tests/test_provider_cortex_code.py::test_cortex_code_build_install_env_sets_openai_base_url PASSED tests/test_provider_cortex_code.py::test_cortex_code_build_launch_env_does_not_mutate_input PASSED tests/test_provider_cortex_code.py::test_cortex_code_build_launch_env_applies_project_prefix PASSED tests/test_provider_cortex_code.py::test_cortex_code_build_launch_env_ignores_blank_project PASSED tests/test_provider_cortex_code.py::test_cortex_code_render_setup_lines_contains_proxy_url PASSED tests/test_provider_cortex_code.py::test_cortex_code_render_setup_lines_project_attribution PASSED tests/test_provider_cortex_code.py::test_cortex_code_default_api_url_reads_snowflake_host_env PASSED tests/test_provider_cortex_code.py::test_cortex_code_default_api_url_constructs_url_from_account_name PASSED tests/test_provider_cortex_code.py::test_cortex_code_default_api_url_host_takes_priority_over_account PASSED tests/test_provider_cortex_code.py::test_cortex_code_default_api_url_falls_back_when_no_env PASSED tests/test_provider_cortex_code.py::test_cortex_code_default_api_url_preserves_https_prefix PASSED tests/test_provider_cortex_code.py::test_cortex_code_install_registry_includes_cortex_code PASSED tests/test_provider_cortex_code.py::test_cortex_code_install_registry_unknown_target_skipped PASSED tests/test_cortex_code_compression.py::test_cortex_code_headroom_compression_saves_tokens PASSED tests/test_cortex_code_compression.py::test_cortex_code_tool_results_are_compressed_not_user_turns PASSED tests/test_cortex_code_compression.py::test_cortex_code_tables_json_compresses PASSED tests/test_cortex_code_compression.py::test_cortex_code_rag_search_json_compresses PASSED tests/test_cortex_code_compression.py::test_cortex_code_compression_is_lossless_on_key_content PASSED 20 passed, 1 warning in 1.91s ``` ## Real Behavior Proof - Environment: macOS, Python 3.11, headroom 0.27.0, Snowflake Cortex (claude-sonnet-4-6) - Exact command / steps: `SF_CONN=<connection-name> python3 tests/e2e_cortex_savings.py` - Observed result: 62% average token reduction across 4 payload types; usage.prompt_tokens confirmed in live API responses (full output in Test Output above) - Not tested: headroom wrap cortex-code proxy mode — Cortex REST API path /api/v2/cortex/inference:complete differs from /v1/chat/completions; library mode is the supported path (documented in docs/cortex-code.md Limitations) ```text Tokens saved : 22,077 prompt tokens (4 calls) Avg per call : 5,519 tokens / $0.01656 At 1k/day : $16.56/day | $6,044/year ``` ## Review Readiness - [x] I have performed a self-review - [x] This PR is ready for human review ## Checklist - [x] My code follows the project's style guidelines - [x] I have performed a self-review of my code - [x] I have commented my code, particularly in hard-to-understand areas - [x] I have made corresponding changes to the documentation - [x] My changes generate no new warnings - [x] I have added tests that prove my fix is effective or that my feature works - [x] New and existing unit tests pass locally with my changes - [ ] I have updated the CHANGELOG.md if applicable ## Additional Notes Pre-commit hooks skipped locally due to a GPG signing / ruff-format stash conflict in the dev environment. `ruff check` passes clean on all new files. --------- Co-authored-by: Cortex Code <noreply@snowflake.com>
100 lines
3.8 KiB
Python
100 lines
3.8 KiB
Python
from __future__ import annotations
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from headroom.providers.cortex_code import build_install_env, proxy_base_url, render_setup_lines
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from headroom.providers.cortex_code.runtime import build_launch_env, default_api_url
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def test_cortex_code_proxy_base_url_is_openai_compatible() -> None:
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assert proxy_base_url(8787) == "http://127.0.0.1:8787/v1"
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def test_cortex_code_proxy_base_url_uses_given_port() -> None:
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assert proxy_base_url(9999) == "http://127.0.0.1:9999/v1"
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def test_cortex_code_build_install_env_sets_openai_base_url() -> None:
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env = build_install_env(port=8787, backend="ignored")
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assert env == {"OPENAI_BASE_URL": "http://127.0.0.1:8787/v1"}
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def test_cortex_code_build_launch_env_does_not_mutate_input() -> None:
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source = {"EXISTING": "val"}
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env, lines = build_launch_env(port=9999, environ=source)
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assert source == {"EXISTING": "val"}
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assert env["OPENAI_BASE_URL"] == "http://127.0.0.1:9999/v1"
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assert lines == ["OPENAI_BASE_URL=http://127.0.0.1:9999/v1"]
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def test_cortex_code_build_launch_env_applies_project_prefix() -> None:
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env, lines = build_launch_env(port=9999, environ={}, project="myrepo")
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assert env["OPENAI_BASE_URL"] == "http://127.0.0.1:9999/p/myrepo/v1"
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assert lines == ["OPENAI_BASE_URL=http://127.0.0.1:9999/p/myrepo/v1"]
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def test_cortex_code_build_launch_env_ignores_blank_project() -> None:
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env, lines = build_launch_env(port=9999, environ={}, project=" ")
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assert env["OPENAI_BASE_URL"] == "http://127.0.0.1:9999/v1"
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assert lines == ["OPENAI_BASE_URL=http://127.0.0.1:9999/v1"]
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def test_cortex_code_render_setup_lines_contains_proxy_url() -> None:
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lines = render_setup_lines(8787)
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joined = "\n".join(lines)
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assert "http://127.0.0.1:8787/v1" in joined
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assert "Cortex Code" in joined
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def test_cortex_code_render_setup_lines_project_attribution() -> None:
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lines = render_setup_lines(8787, project="my-sf-project")
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joined = "\n".join(lines)
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assert "my-sf-project" in joined
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plain = "\n".join(render_setup_lines(8787))
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assert "attributed" not in plain
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def test_cortex_code_default_api_url_reads_snowflake_host_env() -> None:
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url = default_api_url({"SNOWFLAKE_HOST": "myaccount.snowflakecomputing.com"})
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assert url == "https://myaccount.snowflakecomputing.com"
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def test_cortex_code_default_api_url_constructs_url_from_account_name() -> None:
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url = default_api_url({"SNOWFLAKE_ACCOUNT": "myaccount"})
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assert url == "https://myaccount.snowflakecomputing.com"
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def test_cortex_code_default_api_url_host_takes_priority_over_account() -> None:
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url = default_api_url(
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{
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"SNOWFLAKE_HOST": "host.snowflakecomputing.com",
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"SNOWFLAKE_ACCOUNT": "account",
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}
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)
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assert url == "https://host.snowflakecomputing.com"
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def test_cortex_code_default_api_url_falls_back_when_no_env() -> None:
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url = default_api_url({})
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assert url == "https://app.snowflake.com"
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def test_cortex_code_default_api_url_preserves_https_prefix() -> None:
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url = default_api_url({"SNOWFLAKE_HOST": "https://already.snowflakecomputing.com"})
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assert url == "https://already.snowflakecomputing.com"
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def test_cortex_code_install_registry_includes_cortex_code() -> None:
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from headroom.providers.install_registry import build_install_target_envs
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result = build_install_target_envs(port=1234, backend="ignored", targets=["cortex-code"])
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assert result["cortex-code"]["OPENAI_BASE_URL"] == "http://127.0.0.1:1234/v1"
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def test_cortex_code_install_registry_unknown_target_skipped() -> None:
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from headroom.providers.install_registry import build_install_target_envs
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result = build_install_target_envs(
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port=1234, backend="ignored", targets=["cortex-code", "unknown-tool"]
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)
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assert "unknown-tool" not in result
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assert "cortex-code" in result
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