> ## Documentation Index > Fetch the complete documentation index at: https://talktohumans.app/docs/llms.txt > Use this file to discover all available pages before exploring further. # List skills > Lists the step-by-step playbooks the MCP serves with `load_skill`, in the order agents should consider them. Read `ground-rules` once per session, then the skill whose `use_when` matches the task. Playbooks name MCP tools; the CLI maps each tool to a command. ## OpenAPI ````yaml /developers/openapi.yaml get /v1/skills openapi: 3.0.3 info: title: TalkToHumans Public API version: 1.0.0 license: name: Proprietary description: > Read and organize the LinkedIn organization data your team already manages in TalkToHumans: accounts, contacts, tags, notes, custom fields, sequence state, conversations, templates, and views. servers: - url: https://api.talktohumans.app description: TalkToHumans API security: - bearerAuth: [] tags: - name: Organization description: Organization details for the current API key. - name: LinkedIn description: LinkedIn accounts, contacts, companies, and conversations. - name: Activity description: Activity for organization reporting. - name: Enrich description: Profile enrichment for LinkedIn contacts and companies. - name: Views description: Saved TalkToHumans views. - name: Sequences description: Sequences of contacts and conversations. - name: Templates description: Message and sequence templates. - name: Custom fields description: Custom fields for contacts and companies. - name: Tags description: Tags for contacts and companies. - name: Agents description: Playbooks and feedback for AI agents, shared with the MCP. paths: /v1/skills: get: tags: - Agents summary: List skills description: > Lists the step-by-step playbooks the MCP serves with `load_skill`, in the order agents should consider them. Read `ground-rules` once per session, then the skill whose `use_when` matches the task. Playbooks name MCP tools; the CLI maps each tool to a command. operationId: listSkills responses: '200': description: Skills. content: application/json: schema: $ref: '#/components/schemas/ListSkillsEnvelope' example: data: skills: - name: ground-rules use_when: >- always, once at the start of every conversation: safety, data and workspace rules for every task. - name: reply-triage use_when: finding the replies the user owes and drafting them. '400': $ref: '#/components/responses/BadRequest' '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' '429': $ref: '#/components/responses/RateLimited' '500': $ref: '#/components/responses/InternalServerError' components: schemas: ListSkillsEnvelope: type: object additionalProperties: false required: - data properties: data: type: object additionalProperties: false required: - skills properties: skills: type: array items: $ref: '#/components/schemas/SkillSummary' SkillSummary: type: object additionalProperties: false required: - name - use_when properties: name: type: string use_when: type: string description: When an agent should read this skill. Error: type: object additionalProperties: false required: - code - message properties: code: type: string description: Machine-readable error code. enum: - unauthorized - forbidden - not_found - bad_request - internal_error - conflict - rate_limit_exceeded - account_shared_access_required - linkedin_not_connected - workspace_setup_required - billing_payment_failed - billing_subscription_incomplete - billing_subscription_expired - billing_grace_period - billing_feature_not_available - billing_insufficient_credits - billing_invalid - enrichment_failed - enrichment_in_progress - linkedin_profile_not_found message: type: string description: Human-readable error message. debug: type: string description: Development-only debug details. responses: BadRequest: description: Invalid request. `message` explains what to fix. content: application/json: schema: $ref: '#/components/schemas/Error' example: code: bad_request message: >- field "account_id" must be a string, got number; IDs are strings, e.g. "42" Unauthorized: description: >- Missing, malformed, invalid, or retired API key, or an invalid or expired login access token. content: application/json: schema: $ref: '#/components/schemas/Error' examples: missingAuthorization: value: code: unauthorized message: Authorization header is required invalidAuthorizationFormat: value: code: unauthorized message: Authorization header must use Bearer scheme invalidAPIKey: value: code: unauthorized message: Invalid API key invalidAccessToken: value: code: unauthorized message: Invalid or expired access token Forbidden: description: >- API access is not enabled for the organization, the API key cannot resolve to an active organization user, or the login has no workspace yet. content: application/json: schema: $ref: '#/components/schemas/Error' examples: forbidden: value: code: forbidden message: you don't have access to this organization featureUnavailable: value: code: billing_feature_not_available message: >- Feature 'TalkToHumansAPI' is not available in your current plan insufficientCredits: value: code: billing_insufficient_credits message: Insufficient credits apiKeyPrincipalInvalid: value: code: forbidden message: >- This API key is no longer linked to an active organization user. Ask an organization admin to regenerate it workspaceSetupRequired: value: code: workspace_setup_required message: >- This TalkToHumans sign-in has no workspace yet. Open https://app.talktohumans.app, sign in with the same email to finish setting up TalkToHumans, then run `tth auth login` again. RateLimited: description: >- Rate limit exceeded. Public routes allow 50 requests per 10 seconds per IP and endpoint. headers: Retry-After: description: Seconds to wait before retrying the request. schema: type: integer content: application/json: schema: $ref: '#/components/schemas/Error' example: code: rate_limit_exceeded message: Rate limit exceeded InternalServerError: description: Unexpected server error. content: application/json: schema: $ref: '#/components/schemas/Error' example: code: internal_error message: An internal error occurred securitySchemes: bearerAuth: type: http scheme: bearer description: > Pass `Authorization: Bearer `, where the credential is either: - an API key (`sk_…`), generated by an organization admin in Settings, for scripts and automation; - an access token from `tth auth login` (the TalkToHumans CLI), which any member of the workspace can use. Both resolve to the same organization and user. A login token whose sign-in has no workspace yet returns `403 workspace_setup_required`. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.