PerfLens MCP Server
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": false
} |
| prompts | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| inspect_collection_capabilitiesA | Inspect perf, kernel policy, capabilities, and collection-mode availability without sampling or attaching to a process. |
| plan_automatic_collectionA | Create a short-lived PID-bound collection plan. This does not sample or attach. |
| execute_collection_planA | Execute one previously planned PID collection through the restricted collector broker. Plans are short-lived and single-use. |
| collect_project_workloadB | Run one explicitly authorized executable inside a project as the MCP user, bind its exact PID incarnation, and collect it through the restricted Collector broker. |
| analyze_collectionC | Analyze a stored record/sched/lock/off-CPU collection artifact. |
| analyze_profileC | Analyze an allowed folded, perf-script, or perf.data profile and store JSON. |
| list_hotspotsB | Return a bounded page of hotspots from a stored analysis. |
| get_hotspot_detailsA | Return one hotspot with bounded dominant paths, classifications, and limits. |
| get_call_pathsA | Return a bounded page of dominant call paths, optionally containing a symbol. |
| classify_hotspotsC | Apply generic candidate-only rules and return a bounded classification page. |
| build_diagnosis_bundleB | Build and store the full evidence-constrained diagnosis artifact. |
| read_artifact_pageA | Read at most 64 KiB from a stored JSON artifact. |
| resolve_sourceC | Resolve a verified module offset using an allowed ELF/debug file. |
| get_source_contextB | Read bounded source lines within one configured allowed workspace. |
| analyze_benchmarkC | Normalize a supported benchmark JSON file and store the typed artifact. |
| compare_profilesB | Compare two stored analyses and store bounded profile-difference evidence. |
| compare_benchmarksB | Compare repeated benchmark values with condition and impact checks. |
| collect_profileA | Run bounded perf record/stat/sched/lock/off-CPU collection only after explicit server and per-call authorization. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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