dcc-mcp-renderdoc 0.3.0

RenderDoc capture and replay automation skills for DCC-MCP

dcc-mcp-renderdoc

RenderDoc capture and replay automation for the DCC Model Context Protocol ecosystem.

The adapter is headless-first: it reuses the official renderdoccmd executable for capture and conversion, so agents can automate graphics regression triage without keeping the RenderDoc GUI open or installing a second bridge.

Install

pip install dcc-mcp-renderdoc

Install RenderDoc separately, then expose its command line tool with either PATH or:

export DCC_MCP_RENDERDOC_CMD=/opt/renderdoc/bin/renderdoccmd
dcc-mcp-renderdoc

On Windows, set the variable to renderdoccmd.exe.

Each adapter instance uses an OS-assigned MCP port and registers it for CLI discovery. Connect through the stable gateway at http://127.0.0.1:9765/mcp; set DCC_MCP_RENDERDOC_PORT only when a fixed direct endpoint is required.

Agent workflows

• Launch a game or test executable under RenderDoc and wait for a typed .rdc capture.
• Trigger F12 automatically after a configurable delay, with optional child-process window focus.
• Inject into a visible Windows process that had to be launched by a platform client, then trigger and collect a capture.
• Inspect capture driver, machine identity, chunk version, API-call counts, and representative calls.
• Export a capture thumbnail for visual review.
• Export Chrome trace JSON for timeline tooling.

The capture tool launches only the explicit executable and arguments supplied by the caller. It never invokes a shell. Analysis tools are read-only with respect to the .rdc input.

For interactive Windows programs, pass trigger_after_secs to capture_program. When a launcher creates the rendered child process, also pass trigger_process_name. Use capture_process only when the target is already running; late injection may not capture graphics devices created before RenderDoc was attached.

Real CI

CI discovers the current stable RenderDoc build from the official downloads page. It compiles a small OpenGL program, captures a real frame under Xvfb, calls the MCP analysis tool against the resulting .rdc, and verifies thumbnail and timeline exports.

Development

uv sync --extra dev
uv run python -m pytest
uv run ruff check src tests tools
uv run python tools/lint_skills.py

RenderDoc is an MIT-licensed graphics debugger maintained independently at renderdoc.org. This adapter is not affiliated with the RenderDoc project.