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Add Evidence Note

me.add_evidence

Authenticated: append a free-text evidence note to a specific stage in the caller's active course. Notes record concrete implementation observations, decisions, or artefacts that demonstrate progress through a Blueprint principle (e.g. how a delegation boundary was implemented, what approval flow was chosen and why). Persisted as UserStageEvidence rows scoped to (user_id, course_slug, stage_slug). WHEN TO CALL: AFTER the user has articulated something concrete they have built, observed, or decided, not to capture intent or speculation. Pair with me.coaching_context to close evidence gaps. WHEN NOT TO CALL: to log every conversation turn; to record planning, ideas, or todos; on behalf of another user; without the user's awareness (they should know their progress is being recorded). BEHAVIOR: write-only, single insert. Auth: Bearer (any plan). Data at rest in the UK. Notes are visible only to the owning user and are surfaced on me.learning_path / me.coaching_context. Confirms the stage_slug + course_slug pair in the response so the user can see which stage was credited.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
noteYesEvidence note to append to the delegation boundary notes for this stage.
stage_idYesID of the stage to append the evidence note to.
course_slugYesSlug of the course the stage belongs to (e.g. 'agentic-fundamentals').

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
      +  "additionalProperties": true,
      +  "title": "add_evidence_noteDictOutput",
      +  "type": "object"
      +}
  2. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -{
      -  "$defs": {
      -    "ErrorBody": {
      -      "description": "The body of `error_payload(code, message, details)` returns.",
      -      "properties": {
      -        "code": {
      -          "title": "Code",
      -          "type": "string"
      -        },
      -        "details": {
      -          "additionalProperties": true,
      -          "title": "Details",
      -          "type": "object"
      -        },
      -        "message": {
      -          "title": "Message",
      -          "type": "string"
      -        }
      -      },
      -      "title": "ErrorBody",
      -      "type": "object"
      -    }
      -  },
      -  "properties": {
      -    "error": {
      -      "$ref": "#/$defs/ErrorBody",
      -      "default": null
      -    },
      -    "evidence_id": {
      -      "default": null,
      -      "title": "Evidence Id",
      -      "type": "string"
      -    },
      -    "guidance": {
      -      "default": null,
      -      "title": "Guidance",
      -      "type": "string"
      -    },
      -    "status": {
      -      "default": null,
      -      "title": "Status",
      -      "type": "string"
      -    }
      -  },
      -  "title": "MeAddEvidenceResponse",
      -  "type": "object"
      -}New value: +null
  3. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
      +  "$defs": {
      +    "ErrorBody": {
      +      "description": "The body of `error_payload(code, message, details)` returns.",
      +      "properties": {
      +        "code": {
      +          "title": "Code",
      +          "type": "string"
      +        },
      +        "details": {
      +          "additionalProperties": true,
      +          "title": "Details",
      +          "type": "object"
      +        },
      +        "message": {
      +          "title": "Message",
      +          "type": "string"
      +        }
      +      },
      +      "title": "ErrorBody",
      +      "type": "object"
      +    }
      +  },
      +  "properties": {
      +    "error": {
      +      "$ref": "#/$defs/ErrorBody",
      +      "default": null
      +    },
      +    "evidence_id": {
      +      "default": null,
      +      "title": "Evidence Id",
      +      "type": "string"
      +    },
      +    "guidance": {
      +      "default": null,
      +      "title": "Guidance",
      +      "type": "string"
      +    },
      +    "status": {
      +      "default": null,
      +      "title": "Status",
      +      "type": "string"
      +    }
      +  },
      +  "title": "MeAddEvidenceResponse",
      +  "type": "object"
      +}
  4. First observed

TDQS

A4.9/5.0
Behavior5/5

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

Beyond the annotations, it discloses auth requirements (Bearer token, any plan), data residency (UK), write-only single-insert behavior, visibility scope (owning user only), and downstream surfacing on me.learning_path and me.coaching_context. Annotations already establish a non-read-only, non-idempotent write, and the description adds substantial operational context.

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 text is front-loaded and organized into clear sections: purpose, note definition, persistence, WHEN TO CALL, WHEN NOT TO CALL, and BEHAVIOR. Despite its length, every sentence adds actionable guidance or behavioral context.

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?

With full schema coverage, annotations, and an output schema, the description supplies everything else an agent needs: auth, data location, visibility, usage boundaries, response confirmation, and related tools. No material gaps remain.

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 100%, so the input schema already documents all three parameters. The description adds useful semantic context about what qualifies as a note, how it maps to Blueprint principles, and how it is persisted, though it also mentions stage_slug while the schema uses stage_id.

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?

The description states a specific verb and resource: append a free-text evidence note to a specific stage in the caller's active course. It clearly distinguishes this from logging conversation turns or recording intent, and names me.coaching_context as a related tool.

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

Usage Guidelines5/5

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

It provides explicit WHEN TO CALL and WHEN NOT TO CALL sections, including the condition that the user has articulated something concrete, not intent or speculation. It also names me.coaching_context as a pairing tool to close evidence gaps.

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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