The library contains 42 public skills organized by Rails development concern.
Category | Examples |
Planning |
|
Testing |
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Code quality |
|
Architecture and DDD |
|
Rails imple |
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Scored across 4 tools
Each tool has a distinct purpose: list_agents vs list_skills clearly separate discovery of agents from skills, and use_agent vs use_skill are corresponding read operations. No overlap or ambiguity.
All tool names follow a consistent verb_noun pattern: list_agents, list_skills, use_agent, use_skill. Perfectly predictable.
With 4 tools, the server is well-scoped for its purpose of discovering and reading Rails Agents and Skills. No unnecessary tools, and the count is suitable.
For a read-only discovery server, the surface is complete: list to discover, then use to read. There are no gaps for the intended domain.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
list_agentslist_workflowsuse_agentuse_workflowlist_workflowsuse_workflowlist_skills1 field changedOutput schema / properties / skills / items / properties / category / descriptionPrevious value: -"Top-level skill category such as testing, api, engines, or build."New value: +"Top-level skill category such as testing, api, or engines."use_skill1 field changedInput schema / properties / skill_name / descriptionPrevious value: -"Skill name, for example code-review, write-tests, or build."New value: +"Skill name, for example code-review or write-tests."list_skills1 field changedOutput schema / (root)Previous value: -nullNew value: +{
+ "$schema": "http://json-schema.org/draft-07/schema#",
+ "additionalProperties": false,
+ "properties": {
+ "count": {
+ "description": "Number of public skills returned.",
+ "maximum": 9007199254740991,
+ "minimum": 0,
+ "type": "integer"
+ },
+ "skills": {
+ "description": "Public Rails Agent Skills available through use_skill.",
+ "items": {
+ "additionalProperties": false,
+ "properties": {
+ "category": {
+ "description": "Top-level skill category such as testing, api, engines, or build.",
+ "type": "string"
+ },
+ "description": {
+ "description": "Short routing description from the skill frontmatter.",
+ "type": "string"
+ },
+ "name": {
+ "description": "Stable skill name, for example code-review.",
+ "type": "string"
+ },
+ "path": {
+ "description": "Repository path to the skill's SKILL.md file.",
+ "type": "string"
+ }
+ },
+ "required": [
+ "name",
+ "path",
+ "category",
+ "description"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ }
+ },
+ "required": [
+ "count",
+ "skills"
+ ],
+ "type": "object"
+}use_skill1 field changedOutput schema / (root)Previous value: -nullNew value: +{
+ "$schema": "http://json-schema.org/draft-07/schema#",
+ "additionalProperties": false,
+ "properties": {
+ "category": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ],
+ "description": "Skill category, or null when not found."
+ },
+ "content": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ],
+ "description": "Full SKILL.md instructions, or null when not found."
+ },
+ "description": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ],
+ "description": "Short routing description, or null when not found."
+ },
+ "error": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ],
+ "description": "Error message when the skill cannot be loaded."
+ },
+ "found": {
+ "description": "Whether the requested skill was found.",
+ "type": "boolean"
+ },
+ "name": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ],
+ "description": "Normalized skill name, or null when not found."
+ },
+ "path": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ],
+ "description": "Repository path to the skill's SKILL.md file, or null when not found."
+ }
+ },
+ "required": [
+ "found",
+ "name",
+ "path",
+ "category",
+ "description",
+ "content",
+ "error"
+ ],
+ "type": "object"
+}list_skillsuse_skill
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