# compare_darshan_logs

Compare two Darshan log files to identify performance differences between runs.

Agent View of the PolicyLayer registry record for `compare_darshan_logs`. HTML page: https://policylayer.com/tools/io-github-iowarp-adios-mcp/compare-darshan-logs

## Facts

- Tool: `compare_darshan_logs`
- Server: CLIO Adios (`pypi:clio-kit`) — https://policylayer.com/tools/io-github-iowarp-adios-mcp.md
- Install: `npx -y pypi:clio-kit`
- Homepage: https://github.com/iowarp/clio-kit
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "compare_darshan_logs",
    "arguments": {}
  }
}
```

## Why compare_darshan_logs is rated Low

This tool retrieves and analyzes log file data to produce comparative performance insights. It has no side effects—it does not modify logs, execute arbitrary code, delete files, or trigger external operations. It falls clearly into the Read category as a diagnostic/analytical tool.

From the tool's own definition: "Tool name 'compare_darshan_logs' and description 'Compare two Darshan log files to identify performance differences between runs' indicate read-only analysis of existing log files."

## Use case

AI agents call compare_darshan_logs to retrieve information from CLIO Adios without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches CLIO Adios:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "compare_darshan_logs": {}
  }
}
```

## Other tools on CLIO Adios (203)

- `cancel_slurm_job` — Destructive — https://policylayer.com/tools/io-github-iowarp-adios-mcp/cancel-slurm-job.md
- `destroy_pipeline` — Destructive — https://policylayer.com/tools/io-github-iowarp-adios-mcp/destroy-pipeline.md
- `jm_remove_repo` — Destructive — https://policylayer.com/tools/io-github-iowarp-adios-mcp/jm-remove-repo.md
- `jm_reset` — Destructive — https://policylayer.com/tools/io-github-iowarp-adios-mcp/jm-reset.md
- `remove_pkg` — Destructive — https://policylayer.com/tools/io-github-iowarp-adios-mcp/remove-pkg.md
- `slurm_cancel` — Destructive — https://policylayer.com/tools/io-github-iowarp-adios-mcp/slurm-cancel.md
- `allocate_slurm_nodes` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/allocate-slurm-nodes.md
- `build_pipeline_env` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/build-pipeline-env.md
- `generate_isosurface` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/generate-isosurface.md
- `heatmap_plot` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/heatmap-plot.md
- `hypothesis_testing` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/hypothesis-testing.md
- `jarvis_run` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/jarvis-run.md
- `jm_cd` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/jm-cd.md
- `jm_graph_build` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/jm-graph-build.md
- `module_load` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/module-load.md
- `module_swap` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/module-swap.md
- `module_unload` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/module-unload.md
- `parallel_sort_large_file` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/parallel-sort-large-file.md
- `reset_camera` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/reset-camera.md
- `rotate_camera` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/rotate-camera.md
- `run_pipeline` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/run-pipeline.md
- `show_screenshot_preview` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/show-screenshot-preview.md
- `stop_chronolog` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/stop-chronolog.md
- `submit_array_job` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/submit-array-job.md
- `submit_slurm_job` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/submit-slurm-job.md
- `warp_by_vector` — Execute — https://policylayer.com/tools/io-github-iowarp-adios-mcp/warp-by-vector.md
- `aggregate_column_tool` — Read — https://policylayer.com/tools/io-github-iowarp-adios-mcp/aggregate-column-tool.md
- `analyze_file_access_patterns` — Read — https://policylayer.com/tools/io-github-iowarp-adios-mcp/analyze-file-access-patterns.md
- `analyze_log_statistics` — Read — https://policylayer.com/tools/io-github-iowarp-adios-mcp/analyze-log-statistics.md
- `analyze_mpiio_operations` — Read — https://policylayer.com/tools/io-github-iowarp-adios-mcp/analyze-mpiio-operations.md
- …and 173 more: https://policylayer.com/tools/io-github-iowarp-adios-mcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-iowarp-adios-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-iowarp-adios-mcp