## Description
Adds first-class GCP Vertex AI proxy routing for publisher REST
endpoints so Vertex requests are forwarded to a configurable regional
Vertex host instead of falling through to the generic
OpenAI/Anthropic/Gemini passthrough selection.
Fixes#792
## Type of Change
- [x] New feature (non-breaking change that adds functionality)
- [x] Documentation update
## Changes Made
- Added a `vertex` provider target with `VERTEX_TARGET_API_URL` and
`--vertex-api-url` support.
- Registered explicit Vertex publisher routes for Google
`generateContent`, `streamGenerateContent`, `countTokens` and Anthropic
publisher `rawPredict`, `streamRawPredict` passthrough.
- Added startup banner/routing output for Vertex AI.
- Added focused tests for provider target resolution, CLI/env config,
banner output, and route delegation.
- Added `wiki/vertex.md` with usage examples and Google Cloud source
links.
## Sources
- Vertex AI Gemini inference reference:
https://docs.cloud.google.com/vertex-ai/generative-ai/docs/model-reference/inference
- Google Cloud REST authentication:
https://docs.cloud.google.com/docs/authentication/rest
- Google Application Default Credentials:
https://docs.cloud.google.com/docs/authentication/application-default-credentials
## Testing
- [x] Linting passes (`python -m ruff check .`)
- [x] New tests added for new functionality
- [x] Focused unit tests pass
- [ ] Full unit suite completed locally
- [ ] Rust tests completed locally
- [ ] Type checking passes locally
## Test Output
```text
$ python -m ruff check .
All checks passed!
$ python -m pytest tests/test_provider_registry.py tests/test_provider_proxy_routes.py tests/test_cli_proxy_env.py tests/test_banner_upstream_targets.py -q
57 passed, 1 warning in 13.75s
```
Local limitations:
- `python -m pytest tests scripts/tests -q` timed out after 1 hour on
this Windows machine before completing.
- `cargo test -p headroom-proxy --test integration_vertex_raw_predict`
could not run because `cargo` is not installed on PATH in this
environment.
- The commit hook's `mypy` step fails locally on an existing Windows
`fcntl` typing issue in `headroom/subscription/tracker.py`; `ruff`,
`ruff-format`, and plugin-version hooks passed, and the commit was made
with only `mypy` skipped.
## Checklist
- [x] My code follows the project's style guidelines
- [x] I have performed a self-review of my code
- [x] I have made corresponding changes to the documentation
- [x] I have added tests that prove the feature works
- [ ] New and existing unit tests pass locally with my changes
- [ ] I have updated the CHANGELOG.md if applicable
## Summary
- add a containerized differential network capture harness for Claude
Code direct vs Claude Code routed through Headroom
- capture both Headroom client-side traffic and Headroom upstream
traffic with sanitized mitmproxy JSONL output
- add `headroom capture network-diff` to compare captures and produce
Markdown/JSON reports, including Anthropic tool-count/tool-byte deltas
for deferred-tool investigations
- add an on-demand GitHub Actions workflow for the harness; it only runs
via `workflow_dispatch`, with live Claude Code/Anthropic capture gated
on `ANTHROPIC_API_KEY`
- document the workflow and ignore generated capture artifacts
## Validation
- `C:\git\headroom\.venv\Scripts\python.exe -m pytest
tests/test_network_diff_capture.py`
- `ruff check headroom/capture headroom/cli/capture.py
tests/test_network_diff_capture.py`
- `ruff format --check headroom/capture headroom/cli/capture.py
tests/test_network_diff_capture.py`
- `C:\git\headroom\.venv\Scripts\python.exe -m mypy
headroom/capture/network_diff.py headroom/cli/capture.py`
- `docker compose -f
docker/differential-network-capture/docker-compose.yml --profile run
config`
- `docker compose -f
docker/differential-network-capture/docker-compose.yml --profile run
build claude-direct`
- `docker run --rm -e CLAUDE_COMMAND="claude --version"
headroom-network-diff-claude-direct:latest`
- parsed `.github/workflows/network-diff-capture.yml` with PyYAML and
confirmed manual-only trigger
Live Claude API capture was not run locally because `ANTHROPIC_API_KEY`
is not set in this environment. The workflow can run it manually in
GitHub Actions when that secret is present; otherwise it emits a visible
skip warning and uploads a skipped artifact.
## Notes
- Full pre-commit mypy still fails on unrelated Windows `fcntl`
attributes in `headroom/subscription/tracker.py`; the feature commit
skipped only that hook after narrow mypy passed for the new modules.
- `tests/test_release_workflows.py` has two Windows-local failures
because it shells out to a missing Unix/Rust command; unrelated workflow
checks in that file passed before those failures.
- Motivated by
https://github.com/chopratejas/headroom/issues/746#issuecomment-4651276818
/ Issue #746.
Add system-native install scripts and host wrappers for running Headroom from Docker while keeping wrapped tools on the host. Document the Docker-native path, add a complete CLI reference with help output and parity details, and add support for root help/version aliases and proxy env-based binding behavior.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
- Remove CrewAI and OpenAI Agents SDK claims (not implemented)
- Upgrade LangChain from "Experimental" to "Stable" (fully implemented)
- Fix latency FAQ: "1-5ms" → accurate "15-200ms" with cost-benefit context
- Create docs/strands.md (README linked to it but file didn't exist)
- Align docs/index.md with compress() function API (was showing stale class API)
- Add Strands, MCP, Integration Guide to mkdocs nav
- Note stale v0.3.7 benchmarks in LATENCY_BENCHMARKS.md
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Rename client/response variables to be unique per provider branch
to avoid type inference conflicts. Use getattr for Anthropic content
block text access to handle union types.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add mkdocs.yml with Material theme (indigo, professional)
- Add docs/index.md landing page with quick install
- Add GitHub Actions workflow for auto-deployment
- Remove old docs/README.md (replaced by index.md)
