TraceWeave

Name: TraceWeave
Author: gokeshenzhen

mcp · by gokeshenzhen

简洁的测试平台日志，波形(FSDB/VCD)，根因分析MCP Server. A Simple and Universal MCP Server to Debug Testbench Simulation Failures Via Log Parsing And Waveform Analysis (FSDB/VCD)

43 14 tools GitHub PyPI

No known CVEs

MIT license

Actively maintained

Last commit 2d ago

Works with most clients

Transport: stdio, sse, http

14 tools · ~945 tok

Grade B · 0.5% of 200K ctx

Edit this pageView history

Developer Tools Data

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "TraceWeave": {
      "env": {
        "PATH": "/tools/synopsys/verdi/O-2018.09-SP2-11/bin:/tools/synopsys/vcs/O-2018.09-SP2-11/bin:/tools/cadence/XCELIUM1803/tools/bin:/usr/local/bin:/usr/bin:/bin",
        "VCS_HOME": "/tools/synopsys/vcs/O-2018.09-SP2-11",
        "XLM_ROOT": "/tools/cadence/XCELIUM1803",
        "VERDI_HOME": "/tools/synopsys/verdi/O-2018.09-SP2-11"
      },
      "args": [
        "/home/robin/Projects/mcp/TraceWeave/server.py"
      ],
      "command": "python3.11"
    }
  }
}

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[![MCPpedia Score](https://mcppedia.org/api/badge/traceweave)](https://mcppedia.org/s/traceweave)

Read me

What TraceWeave does

TraceWeave is a workflow-oriented debug server rather than a loose collection of parsers. It combines:

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

uvx 'mcp' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

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Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

84/100across 5 weighted dimensions

How we score →

0255075100

−16

Security

Maintenance

Efficiency

Documentation

Compatibility

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Security

OSV.dev

3 fixed

CVE-2025-66416medium · fixedCVSS 4

Model Context Protocol (MCP) Python SDK does not enable DNS rebinding protection by default

### Description The Model Context Protocol (MCP) Python SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without authentication using `FastMCP` with streamable HTTP or SSE transport, and has not configured `TransportSecuritySettings`, a malicious website could exploit DNS rebinding to bypass same-origin policy restrictions and send requests to the local MCP server. This could allow an attacker to invoke tools or ac

Affected: >= 0Fixed in 1.23.0source →

CVE-2025-53366medium · fixedCVSS 4

MCP Python SDK vulnerability in the FastMCP Server causes validation error, leading to DoS

A validation error in the MCP SDK can cause an unhandled exception when processing malformed requests, resulting in service unavailability (500 errors) until manually restarted. Impact may vary depending on the deployment conditions, and presence of infrastructure-level resilience measures. Thank you to Rich Harang for reporting this issue.

Affected: >= 0Fixed in 1.9.4source →

CVE-2025-53365medium · fixedCVSS 4

MCP Python SDK has Unhandled Exception in Streamable HTTP Transport, Leading to Denial of Service

If a client deliberately triggers an exception after establishing a streamable HTTP session, this can lead to an uncaught ClosedResourceError on the server side, causing the server to crash and requiring a restart to restore service. Impact may vary depending on the deployment conditions, and presence of infrastructure-level resilience measures. Thank you to Rich Harang for reporting this issue.

Affected: >= 0Fixed in 1.10.0source →

Inventory

Tools (14)

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~945 tokens total

Community

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Frequently Asked Questions

Is TraceWeave safe to use?: TraceWeave has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.
How do I install TraceWeave?: TraceWeave supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can TraceWeave do?: TraceWeave provides 14 tools: get_diagnostic_snapshot, get_sim_paths, build_tb_hierarchy, scan_structural_risks, parse_sim_log and 9 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with TraceWeave?: TraceWeave is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is TraceWeave actively maintained?: TraceWeave is actively maintained — last commit was 2 days ago. It has 43 GitHub stars.

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Community

Discussion

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Has anyone used this with Cursor?How do you handle auth?Any alternatives?

{ "mcpServers": { "TraceWeave": { "env": { "PATH": "/tools/synopsys/verdi/O-2018.09-SP2-11/bin:/tools/synopsys/vcs/O-2018.09-SP2-11/bin:/tools/cadence/XCELIUM1803/tools/bin:/usr/local/bin:/usr/bin:/bin", "VCS_HOME": "/tools/synopsys/vcs/O-2018.09-SP2-11", "XLM_ROOT": "/tools/cadence/XCELIUM1803", "VERDI_HOME": "/tools/synopsys/verdi/O-2018.09-SP2-11" }, "args": [ "/home/robin/Projects/mcp/TraceWeave/server.py" ], "command": "python3.11" } } }

Waveform + log root-cause MCP — stop debugging by hand, use TraceWeave.

What sets TraceWeave apart: when a Verdi license is available it engages KDB/NPI for accurate cross-hierarchy driver / load / connectivity analysis; without a license it still locates issues via the built-in Static backend, log parsing, and VCD/FSDB waveform reads. It supports driver backtracking, load/fanout lookup, value-at-time queries, cycle-aligned sampling, arbitrary signal-window queries, lightweight X/Z tracing, structural risk scanning, and failure-group diffing — and emits structured next-step debug recommendations for MCP clients.

_{Workflow illustration; timing and speedup depend on project scale and waveform availability.}

TraceWeave is a workflow-oriented debug server rather than a loose collection of parsers. It combines:

An MCP server with session state, workflow gates, and recommended tool ordering

Path discovery for compile logs, simulation logs, and waveform artifacts

Compile-log-driven hierarchy building and source-aware driver correlation

VCD and FSDB waveform backends with signal search

Failure-centric recommendations, structural risk scanning, and X/Z propagation tracing

Structured output schemas designed for MCP clients

Repository Layout

TraceWeave/ ├── config.py # Environment-sensitive constants and discovery rules ├── server.py # MCP entry point, session state, and workflow gating ├── custom_patterns.yaml # User-extensible log patterns ├── fsdb_wrapper.cpp # Native FSDB wrapper source ├── build_wrapper.sh # Builds libfsdb_wrapper.so ├── scripts/ # setup_fsdb.sh / verify_fsdb.sh ├── tests/ # Unit and integration tests └── src/ ├── path_discovery.py ├── compile_log_parser.py ├── tb_hierarchy_builder.py ├── vcd_parser.py ├── fsdb_parser.py ├── fsdb_signal_index.py ├── waveform_batch.py # FSDB+VCD time-window batch reader ├── log_parser.py ├── analyzer.py ├── signal_driver.py ├── signal_load.py # Load/fanout finder, Static + NPI ├── connectivity_backend.py # ConnectivityBackend protocol + select_backend ├── verdi_backend.py # KDB / license probe + ... [View full README on GitHub](https://github.com/gokeshenzhen/TraceWeave#readme)

Frequently Asked Questions

Is TraceWeave safe to use?

TraceWeave has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.

How do I install TraceWeave?

TraceWeave supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can TraceWeave do?

TraceWeave provides 14 tools: get_diagnostic_snapshot, get_sim_paths, build_tb_hierarchy, scan_structural_risks, parse_sim_log and 9 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with TraceWeave?

TraceWeave is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.

Is TraceWeave actively maintained?

TraceWeave is actively maintained — last commit was 2 days ago. It has 43 GitHub stars.

Waveform + log root-cause MCP — stop debugging by hand, use TraceWeave.

_{Workflow illustration; timing and speedup depend on project scale and waveform availability.}

TraceWeave is a workflow-oriented debug server rather than a loose collection of parsers. It combines:

An MCP server with session state, workflow gates, and recommended tool ordering

Path discovery for compile logs, simulation logs, and waveform artifacts

Compile-log-driven hierarchy building and source-aware driver correlation

VCD and FSDB waveform backends with signal search

Failure-centric recommendations, structural risk scanning, and X/Z propagation tracing

Structured output schemas designed for MCP clients

Repository Layout

TraceWeave

Install in your client