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PerfLens MCP Server

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build_diagnosis_bundle

Idempotent

Compile performance analysis findings into a complete diagnosis bundle, storing the evidence-constrained artifact for later retrieval.

Instructions

Build and store the full evidence-constrained diagnosis artifact.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
analysis_idYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
uriYes
summaryYes
artifact_idYes
artifact_typeYes
schema_versionNo1.0
evidence_qualityNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed12 schema fields changedv0.3.2
    • addedOutput schema / $defs / EvidenceQuality / properties / kernel_context_self_percent
      Added value: +{
      +  "anyOf": [
      +    {
      +      "maximum": 100,
      +      "minimum": 0,
      +      "type": "number"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "title": "Kernel Context Self Percent"
      +}
    • addedOutput schema / $defs / EvidenceQuality / properties / kernel_context_self_weight
      Added value: +{
      +  "anyOf": [
      +    {
      +      "minimum": 0,
      +      "type": "integer"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "title": "Kernel Context Self Weight"
      +}
    • addedOutput schema / $defs / EvidenceQuality / properties / unknown_context_self_percent
      Added value: +{
      +  "anyOf": [
      +    {
      +      "maximum": 100,
      +      "minimum": 0,
      +      "type": "number"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "title": "Unknown Context Self Percent"
      +}
    • addedOutput schema / $defs / EvidenceQuality / properties / unknown_context_self_weight
      Added value: +{
      +  "anyOf": [
      +    {
      +      "minimum": 0,
      +      "type": "integer"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "title": "Unknown Context Self Weight"
      +}
    • addedOutput schema / $defs / EvidenceQuality / properties / unresolved_kernel_self_percent
      Added value: +{
      +  "anyOf": [
      +    {
      +      "maximum": 100,
      +      "minimum": 0,
      +      "type": "number"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "title": "Unresolved Kernel Self Percent"
      +}
    • addedOutput schema / $defs / EvidenceQuality / properties / unresolved_kernel_self_weight
      Added value: +{
      +  "anyOf": [
      +    {
      +      "minimum": 0,
      +      "type": "integer"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "title": "Unresolved Kernel Self Weight"
      +}
    • addedOutput schema / $defs / EvidenceQuality / properties / unresolved_unknown_context_self_percent
      Added value: +{
      +  "anyOf": [
      +    {
      +      "maximum": 100,
      +      "minimum": 0,
      +      "type": "number"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "title": "Unresolved Unknown Context Self Percent"
      +}
    • addedOutput schema / $defs / EvidenceQuality / properties / unresolved_unknown_context_self_weight
      Added value: +{
      +  "anyOf": [
      +    {
      +      "minimum": 0,
      +      "type": "integer"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "title": "Unresolved Unknown Context Self Weight"
      +}
    • addedOutput schema / $defs / EvidenceQuality / properties / unresolved_user_self_percent
      Added value: +{
      +  "anyOf": [
      +    {
      +      "maximum": 100,
      +      "minimum": 0,
      +      "type": "number"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "title": "Unresolved User Self Percent"
      +}
    • addedOutput schema / $defs / EvidenceQuality / properties / unresolved_user_self_weight
      Added value: +{
      +  "anyOf": [
      +    {
      +      "minimum": 0,
      +      "type": "integer"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "title": "Unresolved User Self Weight"
      +}
    • addedOutput schema / $defs / EvidenceQuality / properties / user_context_self_percent
      Added value: +{
      +  "anyOf": [
      +    {
      +      "maximum": 100,
      +      "minimum": 0,
      +      "type": "number"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "title": "User Context Self Percent"
      +}
    • addedOutput schema / $defs / EvidenceQuality / properties / user_context_self_weight
      Added value: +{
      +  "anyOf": [
      +    {
      +      "minimum": 0,
      +      "type": "integer"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "title": "User Context Self Weight"
      +}
  2. Changed2 schema fields changedv0.3.0
    • addedOutput schema / $defs
      Added value: +{
      +  "EvidenceQuality": {
      +    "additionalProperties": false,
      +    "properties": {
      +      "actual_event_source": {
      +        "default": "unknown",
      +        "enum": [
      +          "hardware",
      +          "software",
      +          "unknown"
      +        ],
      +        "title": "Actual Event Source",
      +        "type": "string"
      +      },
      +      "address_annotation_line_count": {
      +        "minimum": 0,
      +        "title": "Address Annotation Line Count",
      +        "type": "integer"
      +      },
      +      "aggregated_frame_occurrence_count": {
      +        "minimum": 0,
      +        "title": "Aggregated Frame Occurrence Count",
      +        "type": "integer"
      +      },
      +      "allowed_conclusions": {
      +        "default": [],
      +        "items": {
      +          "type": "string"
      +        },
      +        "title": "Allowed Conclusions",
      +        "type": "array"
      +      },
      +      "call_graph_weight": {
      +        "minimum": 0,
      +        "title": "Call Graph Weight",
      +        "type": "integer"
      +      },
      +      "call_graph_weight_percent": {
      +        "maximum": 100,
      +        "minimum": 0,
      +        "title": "Call Graph Weight Percent",
      +        "type": "number"
      +      },
      +      "collection_limitations": {
      +        "default": [],
      +        "items": {
      +          "type": "string"
      +        },
      +        "title": "Collection Limitations",
      +        "type": "array"
      +      },
      +      "duplicate_frame_line_count": {
      +        "minimum": 0,
      +        "title": "Duplicate Frame Line Count",
      +        "type": "integer"
      +      },
      +      "event": {
      +        "title": "Event",
      +        "type": "string"
      +      },
      +      "exported_call_path_count": {
      +        "minimum": 0,
      +        "title": "Exported Call Path Count",
      +        "type": "integer"
      +      },
      +      "exported_hotspot_count": {
      +        "minimum": 0,
      +        "title": "Exported Hotspot Count",
      +        "type": "integer"
      +      },
      +      "fallback_reason": {
      +        "anyOf": [
      +          {
      +            "type": "string"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ],
      +        "default": null,
      +        "title": "Fallback Reason"
      +      },
      +      "fallback_used": {
      +        "anyOf": [
      +          {
      +            "type": "boolean"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ],
      +        "default": null,
      +        "title": "Fallback Used"
      +      },
      +      "forbidden_conclusions": {
      +        "default": [],
      +        "items": {
      +          "type": "string"
      +        },
      +        "title": "Forbidden Conclusions",
      +        "type": "array"
      +      },
      +      "frame_line_count": {
      +        "minimum": 0,
      +        "title": "Frame Line Count",
      +        "type": "integer"
      +      },
      +      "inline_frame_count": {
      +        "minimum": 0,
      +        "title": "Inline Frame Count",
      +        "type": "integer"
      +      },
      +      "input_bytes": {
      +        "minimum": 0,
      +        "title": "Input Bytes",
      +        "type": "integer"
      +      },
      +      "input_sha256": {
      +        "pattern": "^[a-f0-9]{64}$",
      +        "title": "Input Sha256",
      +        "type": "string"
      +      },
      +      "limitations": {
      +        "default": [],
      +        "items": {
      +          "type": "string"
      +        },
      +        "title": "Limitations",
      +        "type": "array"
      +      },
      +      "malformed_record_count": {
      +        "minimum": 0,
      +        "title": "Malformed Record Count",
      +        "type": "integer"
      +      },
      +      "normalization_merge_count": {
      +        "minimum": 0,
      +        "title": "Normalization Merge Count",
      +        "type": "integer"
      +      },
      +      "omitted_call_path_weight": {
      +        "minimum": 0,
      +        "title": "Omitted Call Path Weight",
      +        "type": "integer"
      +      },
      +      "omitted_hotspot_self_weight": {
      +        "minimum": 0,
      +        "title": "Omitted Hotspot Self Weight",
      +        "type": "integer"
      +      },
      +      "parser_invariants_passed": {
      +        "title": "Parser Invariants Passed",
      +        "type": "boolean"
      +      },
      +      "quality_status": {
      +        "enum": [
      +          "verified",
      +          "partial"
      +        ],
      +        "title": "Quality Status",
      +        "type": "string"
      +      },
      +      "sample_count": {
      +        "minimum": 0,
      +        "title": "Sample Count",
      +        "type": "integer"
      +      },
      +      "schema_version": {
      +        "const": "1.0",
      +        "default": "1.0",
      +        "title": "Schema Version",
      +        "type": "string"
      +      },
      +      "source_annotation_line_count": {
      +        "minimum": 0,
      +        "title": "Source Annotation Line Count",
      +        "type": "integer"
      +      },
      +      "source_collection_artifact_sha256": {
      +        "anyOf": [
      +          {
      +            "pattern": "^[a-f0-9]{64}$",
      +            "type": "string"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ],
      +        "default": null,
      +        "title": "Source Collection Artifact Sha256"
      +      },
      +      "source_collection_id": {
      +        "anyOf": [
      +          {
      +            "type": "string"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ],
      +        "default": null,
      +        "title": "Source Collection Id"
      +      },
      +      "source_line_frame_count": {
      +        "minimum": 0,
      +        "title": "Source Line Frame Count",
      +        "type": "integer"
      +      },
      +      "source_line_self_percent": {
      +        "maximum": 100,
      +        "minimum": 0,
      +        "title": "Source Line Self Percent",
      +        "type": "number"
      +      },
      +      "source_line_self_weight": {
      +        "minimum": 0,
      +        "title": "Source Line Self Weight",
      +        "type": "integer"
      +      },
      +      "source_locations_truncated_hotspot_count": {
      +        "minimum": 0,
      +        "title": "Source Locations Truncated Hotspot Count",
      +        "type": "integer"
      +      },
      +      "total_call_path_count": {
      +        "minimum": 0,
      +        "title": "Total Call Path Count",
      +        "type": "integer"
      +      },
      +      "total_hotspot_count": {
      +        "minimum": 0,
      +        "title": "Total Hotspot Count",
      +        "type": "integer"
      +      },
      +      "total_weight": {
      +        "minimum": 0,
      +        "title": "Total Weight",
      +        "type": "integer"
      +      },
      +      "unicode_replacement_count": {
      +        "minimum": 0,
      +        "title": "Unicode Replacement Count",
      +        "type": "integer"
      +      },
      +      "unresolved_self_percent": {
      +        "maximum": 100,
      +        "minimum": 0,
      +        "title": "Unresolved Self Percent",
      +        "type": "number"
      +      },
      +      "unresolved_self_weight": {
      +        "minimum": 0,
      +        "title": "Unresolved Self Weight",
      +        "type": "integer"
      +      },
      +      "warning_count": {
      +        "minimum": 0,
      +        "title": "Warning Count",
      +        "type": "integer"
      +      },
      +      "warnings_truncated": {
      +        "title": "Warnings Truncated",
      +        "type": "boolean"
      +      },
      +      "weight_source": {
      +        "title": "Weight Source",
      +        "type": "string"
      +      },
      +      "weight_unit": {
      +        "title": "Weight Unit",
      +        "type": "string"
      +      }
      +    },
      +    "required": [
      +      "quality_status",
      +      "parser_invariants_passed",
      +      "input_sha256",
      +      "input_bytes",
      +      "sample_count",
      +      "total_weight",
      +      "event",
      +      "weight_unit",
      +      "weight_source",
      +      "malformed_record_count",
      +      "warning_count",
      +      "warnings_truncated",
      +      "unicode_replacement_count",
      +      "frame_line_count",
      +      "duplicate_frame_line_count",
      +      "address_annotation_line_count",
      +      "source_annotation_line_count",
      +      "aggregated_frame_occurrence_count",
      +      "unresolved_self_weight",
      +      "unresolved_self_percent",
      +      "call_graph_weight",
      +      "call_graph_weight_percent",
      +      "source_line_frame_count",
      +      "source_line_self_weight",
      +      "source_line_self_percent",
      +      "inline_frame_count",
      +      "normalization_merge_count",
      +      "source_locations_truncated_hotspot_count",
      +      "total_hotspot_count",
      +      "exported_hotspot_count",
      +      "omitted_hotspot_self_weight",
      +      "total_call_path_count",
      +      "exported_call_path_count",
      +      "omitted_call_path_weight"
      +    ],
      +    "title": "EvidenceQuality",
      +    "type": "object"
      +  }
      +}
    • addedOutput schema / properties / evidence_quality
      Added value: +{
      +  "anyOf": [
      +    {
      +      "$ref": "#/$defs/EvidenceQuality"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null
      +}
  3. First observedv0.1.0

TDQS

B3.1/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already indicate readOnlyHint=false and idempotentHint=true, so the description doesn't need to restate side effects. 'Store' adds that the result is persisted, and 'build' implies assembly from evidence. However, it does not disclose overwrite behavior, storage location, or any failure semantics beyond what annotations provide.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single focused sentence with no filler. The primary action and object are front-loaded, and every word contributes meaning.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a single-parameter tool with an output schema, the description is close to adequate, but it leaves important context implicit, such as the prerequisite analysis state, how analysis_id is obtained, and when this tool should be invoked. The annotations clarify idempotency and non-read-only behavior, but the description itself is thin.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, and the description never mentions analysis_id or explains what it refers to, where it comes from, or what format it should take. The parameter name is mildly self-explanatory, but the description does not compensate for the lack of schema documentation.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description uses a specific verb ('Build and store') and a specific resource ('full evidence-constrained diagnosis artifact'), making the core function clear. It does not explicitly differentiate it from sibling tools, but the artifact-building purpose is reasonably distinct.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description gives no guidance on when this tool should be used, what must happen before calling it, or how it relates to siblings like collect_profile, finalize_docker_optimization_candidate, or build-related analysis tools. An agent would have to infer the appropriate invocation context.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.