Skill of Skills

Get skill profile

get_skill

Read-onlyIdempotent

Full quality profile for one tool by slug (slugs come from search_skills / get_collection): score breakdown, structural signals, risk level and reasons, platforms, repo link. Direct lookups return any active tool regardless of risk — the risk assessment is part of the answer, not a filter here.

Input Schema

Name	Required	Description	Default
`slug`	Yes

Output Schema

Name	Required	Description	Default
`name`	Yes
`slug`	Yes
`tier`	Yes
`type`	Yes
`forks`	Yes
`stars`	Yes
`scores`	Yes
`license`	Yes
`category`	Yes
`repo_url`	Yes
`platforms`	Yes
`risk_level`	Yes
`updated_at`	Yes
`description`	Yes
`is_official`	Yes
`profile_url`	Yes
`risk_reasons`	Yes
`verification`	Yes
`discovered_at`	Yes
`quality_score`	Yes
`readme_length`	Yes
`release_count`	Yes
`last_commit_at`	Yes
`composite_score`	Yes
`latest_release_at`	Yes
`structural_signals`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed2 schema fields changedOct 14, 2026

addedOutput schema / properties / verification

Added value: +{
+  "anyOf": [
+    {
+      "additionalProperties": false,
+      "properties": {
+        "commit_sha": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "failing_check": {
+          "additionalProperties": false,
+          "properties": {
+            "id": {
+              "type": "string"
+            },
+            "path": {
+              "anyOf": [
+                {
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            }
+          },
+          "required": [
+            "id",
+            "path"
+          ],
+          "type": "object"
+        },
+        "stale": {
+          "type": "boolean"
+        },
+        "status": {
+          "type": "string"
+        },
+        "tier": {
+          "anyOf": [
+            {
+              "enum": [
+                "runs",
+                "loads-clean"
+              ],
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "verified_at": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "status",
+        "tier",
+        "commit_sha",
+        "verified_at",
+        "stale"
+      ],
+      "type": "object"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

changedOutput schema / required

Previous value: -[
-  "name",
-  "slug",
-  "tier",
-  "quality_score",
-  "composite_score",
-  "risk_level",
-  "risk_reasons",
-  "type",
-  "category",
-  "platforms",
-  "description",
-  "repo_url",
-  "profile_url",
-  "stars",
-  "is_official",
-  "last_commit_at",
-  "license",
-  "forks",
-  "scores",
-  "structural_signals",
-  "readme_length",
-  "release_count",
-  "latest_release_at",
-  "discovered_at",
-  "updated_at"
-]New value: +[
+  "name",
+  "slug",
+  "tier",
+  "quality_score",
+  "composite_score",
+  "risk_level",
+  "risk_reasons",
+  "type",
+  "category",
+  "platforms",
+  "description",
+  "repo_url",
+  "profile_url",
+  "stars",
+  "is_official",
+  "last_commit_at",
+  "verification",
+  "license",
+  "forks",
+  "scores",
+  "structural_signals",
+  "readme_length",
+  "release_count",
+  "latest_release_at",
+  "discovered_at",
+  "updated_at"
+]

Changed2 schema fields changedSep 17, 2026

changedInput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "additionalProperties": false,
+  "properties": {
+    "category": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "composite_score": {
+      "type": "number"
+    },
+    "description": {
+      "type": "string"
+    },
+    "discovered_at": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "forks": {
+      "type": "number"
+    },
+    "is_official": {
+      "type": "boolean"
+    },
+    "last_commit_at": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "latest_release_at": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "license": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "name": {
+      "type": "string"
+    },
+    "platforms": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "profile_url": {
+      "type": "string"
+    },
+    "quality_score": {
+      "type": "number"
+    },
+    "readme_length": {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "release_count": {
+      "type": "number"
+    },
+    "repo_url": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "risk_level": {
+      "type": "string"
+    },
+    "risk_reasons": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "scores": {
+      "additionalProperties": false,
+      "properties": {
+        "composite": {
+          "type": "number"
+        },
+        "github": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "quality": {
+          "type": "number"
+        },
+        "recency": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "social": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "star_velocity_30d": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "trending": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        }
+      },
+      "required": [
+        "quality",
+        "composite",
+        "github",
+        "social",
+        "recency",
+        "trending",
+        "star_velocity_30d"
+      ],
+      "type": "object"
+    },
+    "slug": {
+      "type": "string"
+    },
+    "stars": {
+      "type": "number"
+    },
+    "structural_signals": {
+      "additionalProperties": false,
+      "properties": {
+        "config_files": {
+          "type": "boolean"
+        },
+        "examples": {
+          "type": "boolean"
+        },
+        "gotchas": {
+          "type": "boolean"
+        },
+        "progressive_disclosure": {
+          "type": "boolean"
+        },
+        "scripts": {
+          "type": "boolean"
+        },
+        "skill_md": {
+          "type": "boolean"
+        },
+        "verification": {
+          "type": "boolean"
+        }
+      },
+      "required": [
+        "skill_md",
+        "examples",
+        "gotchas",
+        "verification",
+        "scripts",
+        "progressive_disclosure",
+        "config_files"
+      ],
+      "type": "object"
+    },
+    "tier": {
+      "enum": [
+        "curated",
+        "promising",
+        "experimental",
+        "review_required"
+      ],
+      "type": "string"
+    },
+    "type": {
+      "type": "string"
+    },
+    "updated_at": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    }
+  },
+  "required": [
+    "name",
+    "slug",
+    "tier",
+    "quality_score",
+    "composite_score",
+    "risk_level",
+    "risk_reasons",
+    "type",
+    "category",
+    "platforms",
+    "description",
+    "repo_url",
+    "profile_url",
+    "stars",
+    "is_official",
+    "last_commit_at",
+    "license",
+    "forks",
+    "scores",
+    "structural_signals",
+    "readme_length",
+    "release_count",
+    "latest_release_at",
+    "discovered_at",
+    "updated_at"
+  ],
+  "type": "object"
+}

First observedJul 13, 2026

TDQS

A4.5/5.0

Behavior4/5

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

Annotations already declare readOnly, idempotent, and non-destructive, so the safety profile is covered. The description adds genuine behavioral context beyond them: the tool returns any active tool regardless of risk, and risk is presented as answer content rather than a filter.

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?

Two tight sentences: the first front-loads what the tool returns, the second resolves the risk-filter misconception. Every clause earns its place with no redundancy.

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

Completeness5/5

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

For a one-parameter read tool with a full output schema and complete annotations, the description supplies everything else an agent needs, including slug provenance and the risk-inclusion behavior. No gaps remain for correct invocation.

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

Parameters4/5

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

Schema description coverage is 0%, so the description carries the burden. It compensates by naming the parameter's role ('by slug') and its provenance (search_skills / get_collection), which resolves the main ambiguity, though it does not restate the slug syntax that the schema pattern already enforces.

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

Purpose5/5

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

States a specific verb and resource ('full quality profile for one tool by slug') and enumerates the profile contents (score breakdown, structural signals, risk level, platforms, repo link). The parenthetical naming search_skills / get_collection as slug sources cleanly disambiguates it from the sibling list tools.

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

Usage Guidelines4/5

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

Explains how to obtain the required input ('slugs come from search_skills / get_collection') and clarifies the lookup is direct and unrestricted by risk. It stops short of an explicit when-to-use-this-vs-compare_tools statement, but the single-tool scope is unambiguous.

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

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