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postfast-mcp

PostFast MCP 서버

PostFast API용 MCP 서버 — Claude, Cursor, VS Code 등과 같은 AI 도구를 통해 소셜 미디어 게시물을 예약하고 관리하세요.

빠른 시작

1. API 키 받기

PostFast에 로그인한 후 사이드바에서 API로 이동하여 키를 생성하세요.

2. 설치

원하는 방법을 선택하세요:

Claude Desktop (권장)

Claude Desktop 확장 프로그램 디렉토리에서 확장 프로그램을 다운로드하거나 수동으로 설치하세요:

  1. claude_desktop_config.json에 추가:

{
  "mcpServers": {
    "postfast": {
      "command": "npx",
      "args": ["-y", "postfast-mcp"],
      "env": {
        "POSTFAST_API_KEY": "your-api-key-here"
      }
    }
  }
}
  1. Claude Desktop을 재시작하세요.

Claude Code

플러그인 사용 (마켓플레이스 승인 대기 중):

/plugin install postfast@claude-plugins-official

설치 후 API 키를 설정하세요 — 다음 중 하나를 선택하세요:

# Option A: Add to your shell profile (~/.zshrc or ~/.bashrc)
export POSTFAST_API_KEY="your-api-key-here"

# Option B: Add to ~/.claude/settings.local.json
# { "env": { "POSTFAST_API_KEY": "your-api-key-here" } }

그런 다음 Claude Code를 재시작하세요.

수동 설정:

프로젝트의 .mcp.json 또는 ~/.claude/.mcp.json(전역)에 추가:

{
  "mcpServers": {
    "postfast": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "postfast-mcp"],
      "env": {
        "POSTFAST_API_KEY": "your-api-key-here"
      }
    }
  }
}

Cursor / VS Code / Windsurf / 기타 MCP 클라이언트

MCP 설정(.mcp.json, mcp.json 또는 도구의 설정 UI)에 추가:

{
  "mcpServers": {
    "postfast": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "postfast-mcp"],
      "env": {
        "POSTFAST_API_KEY": "your-api-key-here"
      }
    }
  }
}

3. 사용 방법

AI 어시스턴트에게 다음과 같이 요청하세요:

  • "연결된 소셜 계정 목록을 보여줘"

  • "내일 오전 9시에 Instagram에 게시물 예약해줘"

  • "이번 주에 예약된 모든 게시물을 보여줘"

  • "이 이미지를 업로드하고 LinkedIn 게시물을 만들어줘"

  • "이 동영상으로 Facebook 릴스를 만들어줘"

  • "이번 달 Instagram 게시물 분석 결과를 보여줘"

Related MCP server: so-easy-mcp

사용 가능한 도구

도구

설명

list_accounts

연결된 소셜 미디어 계정 목록

list_posts

필터(플랫폼, 상태, 날짜 범위)를 사용하여 게시물 목록 조회

create_posts

게시물 생성 및 예약 (일괄 처리, 최대 15개)

delete_post

ID로 게시물 삭제

upload_media

로컬 파일을 업로드하고 미디어 키 획득 (전체 흐름 처리)

get_upload_urls

미디어 파일 업로드를 위한 서명된 URL 획득

list_pinterest_boards

계정의 Pinterest 보드 조회

list_youtube_playlists

계정의 YouTube 재생 목록 조회

list_gbp_locations

계정의 Google 비즈니스 프로필 위치 조회

generate_connect_link

클라이언트가 계정을 연결할 수 있는 링크 생성

get_post_analytics

게시된 게시물의 성과 지표 가져오기 — Instagram, Facebook, TikTok, Threads, YouTube, LinkedIn(회사 페이지), Pinterest(비즈니스 계정)

지원 플랫폼

Facebook, Instagram, X (Twitter), TikTok, LinkedIn, YouTube, BlueSky, Threads, Pinterest, Telegram, Google 비즈니스 프로필

플랫폼별 제어 설정

게시물을 생성할 때 controls 매개변수를 통해 플랫폼별 설정을 전달할 수 있습니다:

플랫폼

제어 설정

X (Twitter)

xRetweetUrl

Instagram

instagramPublishType (TIMELINE/STORY/REEL), instagramPostToGrid, instagramCollaborators

Facebook

facebookContentType (POST/REEL/STORY), facebookAllowComments, facebookPrivacy, facebookReelsCollaborators

TikTok

tiktokPrivacy (PUBLIC/MUTUAL_FRIENDS/FOLLOWER_OF_CREATOR/ONLY_ME), tiktokIsDraft, tiktokAllowComments, tiktokAllowDuet, tiktokAllowStitch, tiktokBrandOrganic, tiktokBrandContent, tiktokAutoAddMusic, tiktokIsAigc

YouTube

youtubeTitle, youtubePrivacy (PUBLIC/PRIVATE/UNLISTED), youtubeTags, youtubeCategoryId, youtubeIsShort, youtubeMadeForKids, youtubePlaylistId, youtubeThumbnailKey

Pinterest

pinterestBoardId (필수), pinterestLink

LinkedIn

linkedinAttachmentKey, linkedinAttachmentTitle

Google 비즈니스 프로필

gbpLocationId (필수), gbpTopicType (STANDARD/EVENT/OFFER), gbpCallToActionType, gbpCallToActionUrl, gbpEventTitle, gbpEventStartDate, gbpEventEndDate, gbpOfferCouponCode, gbpOfferRedeemUrl, gbpOfferTerms

미디어 업로드

upload_media 도구는 단일 호출로 전체 흐름을 처리합니다:

  1. 파일 확장자에서 콘텐츠 유형 감지

  2. PostFast에서 서명된 업로드 URL 획득

  3. 파일 업로드

  4. create_posts에서 사용할 준비가 된 key와 type 반환

지원 형식: JPEG, PNG, GIF, WebP, MP4, WebM, MOV

업로드 과정을 더 세밀하게 제어해야 하는 경우 get_upload_urls를 직접 사용할 수도 있습니다.

환경 변수

변수

필수

설명

POSTFAST_API_KEY

예

워크스페이스 API 키

POSTFAST_API_URL

아니요

API 기본 URL (기본값: https://api.postfa.st)

테스트

MCP Inspector로 모든 것이 작동하는지 확인하세요:

POSTFAST_API_KEY=your-key npx @modelcontextprotocol/inspector npx postfast-mcp

API 문서

전체 REST API 문서: postfa.st/docs

개발

npm install
npm run build
node dist/index.js

배지

peturgeorgievv-factory/postfast-mcp MCP server

라이선스

MIT

Available Tools

11 tools
create_postsB

Create and schedule social media posts. Supports batch creation (up to 15 posts). Each post targets a specific social account.

ParametersJSON Schema
NameRequiredDescriptionDefault
postsYesArray of posts to create
statusNoPost status. SCHEDULED requires scheduledAt on all posts.SCHEDULED
approvalStatusNoApproval workflow statusAPPROVED
controlsYesPlatform-specific controls (shared across all posts in the batch)

TDQS

B3.4/5.0
Behavior2/5

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

With no annotations, the description must fully disclose behavior. It only says 'create and schedule' but omits side effects, permission requirements, rate limits, or what happens on failure. The mutation nature is implied but not detailed.

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 sentences, no redundancy, front-loaded with key information. Every word earns its place.

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

Completeness2/5

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

Given the tool's complexity (many nested controls, no output schema), the description is insufficient. It fails to explain workflow dependencies (e.g., media upload via get_upload_urls), the role of status/approval, or the return value. Much needed context is missing.

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

Parameters3/5

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

Schema description coverage is 100%, so the schema documents all parameters. The description adds no meaningful value beyond the schema; it restates batch limits already present. Thus baseline 3 is appropriate.

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 clearly states the tool creates and schedules social media posts, specifies batch support (up to 15), and notes each post targets a specific account. It effectively distinguishes from listing and deletion siblings.

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

Usage Guidelines3/5

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

The description implies usage for creating posts but does not explicitly state when to use versus alternatives, nor provides exclusionary hints. No guidance on prerequisites like needing to upload media first.

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

delete_postB

Delete a social media post by ID

ParametersJSON Schema
NameRequiredDescriptionDefault
idYesPost ID to delete

TDQS

B3.2/5.0
Behavior3/5

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

The description explicitly states 'Delete', indicating a destructive action. However, no additional behavioral details are provided, such as whether the deletion is permanent, reversible, or requires specific permissions. As annotations are absent, this is minimal but not misleading.

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

Conciseness4/5

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

Single sentence, no unnecessary words. However, it could be slightly expanded to include key behavioral notes without sacrificing conciseness.

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 simple delete operation with one parameter, the description covers the basic purpose. However, it lacks information about what happens after deletion (e.g., return value, success confirmation). The absence of output schema increases the need for such context.

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

Parameters3/5

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

The only parameter 'id' is fully described in the schema (100% coverage). The description adds no additional meaning beyond the schema, so baseline of 3 is appropriate.

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?

Clearly states the action (delete) and resource (social media post by ID). Specific verb and resource but does not differentiate from siblings; however, no other delete tool is present, so it's clear.

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?

No guidance on when to use this tool compared to alternatives. The description does not mention prerequisites, confirmations, or when not to use it (e.g., if the user likely wants to archive instead).

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

get_post_analyticsA

Fetch published posts with their latest performance metrics (impressions, reach, likes, comments, shares). Only returns published posts that have a platform post ID. LinkedIn personal accounts are excluded. Supported: Instagram, Facebook, TikTok, Threads, YouTube, LinkedIn (company pages), Pinterest (Business accounts). Pinterest extras include pin_clicks, outbound_clicks, saves_90d, save_rate_90d (saves are 90-day rolling because Pinterest API does not expose lifetime totals); video pins additionally surface mrc_views, views_10s, avg_watch_time, v50_watch_time, video_starts, quartile_95_views.

ParametersJSON Schema
NameRequiredDescriptionDefault
startDateYesStart of date range (ISO 8601, e.g. 2026-01-01T00:00:00.000Z)
endDateYesEnd of date range (ISO 8601, e.g. 2026-01-31T23:59:59.999Z)
platformsNoFilter by platforms
socialMediaIdsNoFilter by specific social media account IDs

TDQS

A4.5/5.0
Behavior4/5

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

With no annotations, the description carries full burden. It discloses that it returns only published posts with platform post IDs and excludes certain accounts. It details Pinterest-specific metrics and rolling window behavior. No contradictions are present, though rate limits or authentication are not mentioned.

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 efficiently front-loaded with the main purpose and essential details. It is structured with clear sections for supported platforms and Pinterest extras, every sentence adds value without 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?

Given the complexity (multiple platforms, varied metrics), the description is thorough. It explains what metrics are returned for each platform, highlights special cases (Pinterest 90-day rolling), and specifies exclusion rules. No output schema exists, so the description compensates well.

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?

Input schema has 100% coverage, so the baseline is 3. The description adds value by explaining the meaning of return metrics and how platforms affect results, which indirectly informs parameter usage. It provides context beyond the schema descriptions.

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 clearly identifies the tool's function: fetching published posts with performance metrics. It specifies supported platforms and exclusions, differentiating it from sibling tools like list_posts which only list posts without analytics.

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?

The description explicitly states constraints (only published posts with platform post ID, excludes LinkedIn personal accounts) and lists supported platforms. Although it doesn't directly compare to alternatives, the context is sufficient for an agent to decide when to use this tool.

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

get_upload_urlsA

Get signed upload URLs for media files. Upload your file to the returned URL via PUT, then use the key in create_posts mediaItems.

ParametersJSON Schema
NameRequiredDescriptionDefault
contentTypeYesMIME type of the file. Supported: image/jpeg, image/png, image/gif, image/webp, video/mp4, video/webm, video/quicktime
countNoNumber of upload URLs (1-8 for images, 1 for videos)

TDQS

A3.7/5.0
Behavior3/5

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

With no annotations provided, the description carries full burden. It explains that URLs are signed, that you upload via PUT, and that the key is used in create_posts. However, it does not disclose URL expiration, file size limits, or authentication requirements, leaving some behavioral gaps.

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 sentences, zero fluff. Every word adds value—purpose, upload method, and integration with create_posts are all included efficiently.

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 simple tool with 2 parameters and no output schema, the description covers purpose and workflow but lacks details about the return format (e.g., structure of URLs, keys) and potential failure modes (e.g., rate limits, expiration). At 100% schema coverage and no output schema, additional context on return values would improve completeness.

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

Parameters3/5

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

Schema coverage is 100% (both contentType and count are described). The description adds no new semantic details about parameters beyond what the schema provides, though it does add workflow context (key usage). Baseline 3 is appropriate.

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 clearly states the verb 'Get' and the resource 'signed upload URLs for media files', making the purpose immediately obvious. It also mentions the subsequent use of the key in create_posts, which adds context.

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

Usage Guidelines3/5

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

The description implies a workflow (upload via PUT, then use key in create_posts) but does not explicitly state when to use or when not to use this tool compared to siblings like upload_media. No alternatives or exclusions are mentioned.

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

list_accountsA

List all social media accounts connected to the workspace

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

TDQS

A4.1/5.0
Behavior4/5

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

With no annotations, the description accurately states a read-only operation. It does not detail authentication needs or rate limits, but for a simple list tool, the transparency is adequate.

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, front-loaded sentence with no extraneous words. Every part is necessary and clear.

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?

The description fails to specify the return format or fields of the listed accounts, and there is no output schema. Information on pagination or sorting is also absent, leaving the agent uncertain about the tool's output.

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?

There are no parameters, so schema coverage is 100%. The description adds no parameter info, which is appropriate since none exist. Baseline 4 for zero-parameter tools.

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 clearly states the tool lists all social media accounts connected to the workspace, using a specific verb and resource. It is distinct from sibling tools like list_posts or list_gbp_locations.

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

Usage Guidelines3/5

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

No explicit when-to-use or when-not-to-use guidance is provided. The description implies the tool is for retrieving all accounts, but there is no mention of alternatives or prerequisites.

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

list_gbp_locationsA

List Google Business Profile locations for a connected GBP account

ParametersJSON Schema
NameRequiredDescriptionDefault
socialMediaIdYesGBP account ID (from list_accounts)

TDQS

A3.5/5.0
Behavior3/5

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

With no annotations, the description only indicates a read operation ('List'), but provides no details about pagination, rate limits, or output format.

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?

A single, front-loaded sentence with no wasted words; highly efficient.

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 simple list tool, the description is adequate but omits the prerequisite of needing a connected account from list_accounts, which is important for correct usage.

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

Parameters3/5

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

The input schema is fully described (100% coverage), so the description adds no extra meaning beyond what the parameter description already provides.

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 explicitly states the action 'List' and the resource 'Google Business Profile locations', clearly distinguishing it from sibling tools like list_accounts or list_pinterest_boards.

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?

No guidance on when to use this tool vs alternatives; it does not mention that a preceding call to list_accounts is needed to obtain the socialMediaId parameter.

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

list_pinterest_boardsA

List Pinterest boards for a connected Pinterest account

ParametersJSON Schema
NameRequiredDescriptionDefault
socialMediaIdYesPinterest account ID (from list_accounts)

TDQS

A3.5/5.0
Behavior2/5

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

No annotations are provided, and the description does not disclose behavioral traits such as read-only status, rate limits, or authentication requirements. The description carries the full burden and fails to add such 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 description is a single, efficient sentence with no unnecessary words, achieving high conciseness.

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 simple list tool with one parameter and no output schema, the description is adequate but lacks details on return format, pagination, or any behavioral constraints that would help an agent use it correctly.

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

Parameters3/5

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

The input schema has 100% coverage with a clear description for socialMediaId. The tool description adds no additional meaning beyond the schema, so baseline 3 is appropriate.

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 clearly states the verb 'list' and resource 'Pinterest boards', and specifies 'for a connected Pinterest account', distinguishing it from sibling tools like list_posts or list_accounts.

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

Usage Guidelines3/5

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

The description implies usage for listing boards but provides no explicit guidance on when to use versus alternatives or prerequisites like having a connected account.

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

list_postsA

List social media posts with optional filters for platform, status, and date range

ParametersJSON Schema
NameRequiredDescriptionDefault
pageNoPage number (0-based)
limitNoPosts per page (max 50)
platformsNoFilter by platforms
statusesNoFilter by post statuses
fromNoStart date filter (ISO 8601, e.g. 2025-01-01T00:00:00.000Z)
toNoEnd date filter (ISO 8601, e.g. 2025-01-31T23:59:59.999Z)

TDQS

A3.5/5.0
Behavior3/5

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

With no annotations, the description carries the burden. It indicates a read operation via 'list,' but does not disclose pagination behavior, sorting, authentication needs, or any side effects. Minimal but not misleading.

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?

One efficient sentence with no wasted words. Clear and direct, front-loading the core action and key options.

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?

Lacks output schema and does not describe return values or pagination behavior. For a list operation, this is a noticeable gap, though the parameters hint at pagination.

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

Parameters3/5

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

Schema description coverage is 100%, so the schema already documents parameters. The description only restates filter categories without adding new semantics, meeting baseline but not exceeding.

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 clearly states the action (list) and resource (social media posts), and mentions key filters (platform, status, date range). It effectively distinguishes from sibling tools like create_posts or delete_post.

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?

No explicit guidance on when to use this tool versus alternatives (e.g., get_post_analytics for counts). The description only implies usage for simple listing but lacks exclusions or context.

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

list_youtube_playlistsB

List YouTube playlists for a connected YouTube account

ParametersJSON Schema
NameRequiredDescriptionDefault
socialMediaIdYesYouTube account ID (from list_accounts)

TDQS

B3/5.0
Behavior2/5

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

No annotations are provided, and the description does not disclose any behavioral traits (e.g., authentication requirements, rate limits, whether it returns all playlists or paginated). It only states the basic action.

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

Conciseness3/5

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

The description is one short sentence, which is concise but lacks substantive detail. It is not overly verbose, but it could be more informative without sacrificing brevity.

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

Completeness2/5

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

Given the tool's simplicity (one parameter, no output schema), the description is incomplete. It does not specify what the output contains (e.g., list of playlist objects) or any constraints like 'all playlists for the account'. Important context is missing.

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

Parameters3/5

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

The input schema covers the sole parameter (socialMediaId) with 100% description coverage (referencing list_accounts). The tool description adds no additional meaning beyond the schema, so it meets the baseline of 3.

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 clearly states the action (List), resource (YouTube playlists), and context (for a connected YouTube account). It distinguishes itself from sibling tools like create_posts or delete_post by specifying the resource type.

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 provides no guidance on when to use this tool versus alternatives. There is no mention of prerequisites, conditions, or comparisons to other list tools like list_accounts or list_posts.

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

upload_mediaA

Upload a local file to PostFast and get back a media key for use in create_posts. Handles the full flow: detects content type, gets a signed URL, uploads the file, and returns the key and type.

ParametersJSON Schema
NameRequiredDescriptionDefault
filePathYesAbsolute path to the local file (e.g. /Users/me/photo.jpg)

TDQS

A4.2/5.0
Behavior4/5

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

Discloses full internal flow: content type detection, signed URL acquisition, file upload, and return of key/type. No annotations provided, so description carries burden well.

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 sentences, no wasted words. First sentence states purpose, second explains process. Efficient and front-loaded.

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

Completeness4/5

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

Covers purpose, flow, and output for a simple single-parameter tool. Lacks security/error details but sufficient for typical usage given no output schema needed.

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

Parameters3/5

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

Schema has 100% coverage for 'filePath'. Tool description adds behavioral context but not additional parameter details beyond what schema provides.

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?

Clearly states verb 'Upload', resource 'local file to PostFast', and purpose 'get back a media key for use in create_posts'. Distinguishes from sibling 'get_upload_urls' by describing the full upload flow.

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?

Explicitly connects to 'create_posts' workflow, indicating when to use. Lacks explicit exclusions or alternatives, but context is clear enough for typical use.

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

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

  1. 4 tool updatesv0.1.9
    • Changedcreate_posts14 fields changed
      • addedInput schema / properties / controls / properties / gbpCallToActionType
        Added value: +{
        +  "enum": [
        +    "BOOK",
        +    "ORDER",
        +    "LEARN_MORE",
        +    "SIGN_UP",
        +    "CALL",
        +    "SHOP"
        +  ],
        +  "type": "string"
        +}
      • addedInput schema / properties / controls / properties / gbpCallToActionUrl
        Added value: +{
        +  "description": "CTA button URL (not needed for CALL, ignored for OFFER)",
        +  "type": "string"
        +}
      • addedInput schema / properties / controls / properties / gbpEventEndDate
        Added value: +{
        +  "description": "End date for EVENT/OFFER (ISO 8601)",
        +  "type": "string"
        +}
      • addedInput schema / properties / controls / properties / gbpEventStartDate
        Added value: +{
        +  "description": "Start date for EVENT/OFFER (ISO 8601)",
        +  "type": "string"
        +}
      • addedInput schema / properties / controls / properties / gbpEventTitle
        Added value: +{
        +  "description": "Title for EVENT/OFFER posts (max 58 chars)",
        +  "type": "string"
        +}
      • addedInput schema / properties / controls / properties / gbpLocationId
        Added value: +{
        +  "description": "GBP location resource name (from list_gbp_locations)",
        +  "type": "string"
        +}
      • addedInput schema / properties / controls / properties / gbpOfferCouponCode
        Added value: +{
        +  "description": "Coupon code (OFFER only)",
        +  "type": "string"
        +}
      • addedInput schema / properties / controls / properties / gbpOfferRedeemUrl
        Added value: +{
        +  "description": "Redemption URL (OFFER only)",
        +  "type": "string"
        +}
      • addedInput schema / properties / controls / properties / gbpOfferTerms
        Added value: +{
        +  "description": "Terms and conditions (OFFER only)",
        +  "type": "string"
        +}
      • addedInput schema / properties / controls / properties / gbpTopicType
        Added value: +{
        +  "description": "Post type",
        +  "enum": [
        +    "STANDARD",
        +    "EVENT",
        +    "OFFER"
        +  ],
        +  "type": "string"
        +}
      • removedInput schema / properties / controls / properties / xCommunityId
        Removed value: -{
        -  "type": "string"
        -}
      • removedInput schema / properties / controls / properties / xQuoteTweetUrl
        Removed value: -{
        -  "type": "string"
        -}
      • addedInput schema / properties / posts / items / properties / mediaItems / items / properties / coverImageKey
        Added value: +{
        +  "description": "S3 key of a custom cover/thumbnail image for video posts (upload via get_upload_urls first). Supported on Instagram Reels, Facebook Reels, Pinterest video pins.",
        +  "type": "string"
        +}
      • changedInput schema / properties / posts / items / properties / mediaItems / items / properties / coverTimestamp / description
        Previous value: -"Video cover timestamp"New value: +"Video cover timestamp in milliseconds (e.g. \"5000\" = 5s). Fallback when coverImageKey is also provided."
    • Changedget_post_analytics1 field changed
      • changedInput schema / properties / platforms / items / enum
        Previous value: -[
        -  "FACEBOOK",
        -  "INSTAGRAM",
        -  "X",
        -  "TIKTOK",
        -  "LINKEDIN",
        -  "YOUTUBE",
        -  "BLUESKY",
        -  "THREADS",
        -  "PINTEREST",
        -  "TELEGRAM"
        -]New value: +[
        +  "FACEBOOK",
        +  "INSTAGRAM",
        +  "X",
        +  "TIKTOK",
        +  "LINKEDIN",
        +  "YOUTUBE",
        +  "BLUESKY",
        +  "THREADS",
        +  "PINTEREST",
        +  "TELEGRAM",
        +  "GOOGLE_BUSINESS_PROFILE"
        +]
    • Addedlist_gbp_locations
    • Changedlist_posts1 field changed
      • changedInput schema / properties / platforms / items / enum
        Previous value: -[
        -  "FACEBOOK",
        -  "INSTAGRAM",
        -  "X",
        -  "TIKTOK",
        -  "LINKEDIN",
        -  "YOUTUBE",
        -  "BLUESKY",
        -  "THREADS",
        -  "PINTEREST",
        -  "TELEGRAM"
        -]New value: +[
        +  "FACEBOOK",
        +  "INSTAGRAM",
        +  "X",
        +  "TIKTOK",
        +  "LINKEDIN",
        +  "YOUTUBE",
        +  "BLUESKY",
        +  "THREADS",
        +  "PINTEREST",
        +  "TELEGRAM",
        +  "GOOGLE_BUSINESS_PROFILE"
        +]
  2. 10 tool updatesv0.1.0
    • First observedcreate_posts
    • First observeddelete_post
    • First observedgenerate_connect_link
    • First observedget_post_analytics
    • First observedget_upload_urls
    • First observedlist_accounts
    • First observedlist_pinterest_boards
    • First observedlist_posts
    • First observedlist_youtube_playlists
    • First observedupload_media

TDQS

A3.7/5.0

Scored across 11 tools

Disambiguation5/5

Each tool has a clearly distinct purpose: create, delete, list posts; upload media; get analytics; list accounts and platform-specific resources (GBP, Pinterest, YouTube). No overlapping functionality.

Naming Consistency5/5

All tools follow a consistent verb_noun pattern in snake_case (e.g., create_posts, list_accounts, get_upload_urls), with no mixing of conventions.

Tool Count5/5

11 tools is well-scoped for a social media posting server, covering account listing, post management, media upload, analytics, and platform-specific queries without unnecessary bloat.

Completeness2/5

Missing essential operations: no update_post tool to modify existing posts, and no get_post by ID (only list). This creates a significant gap for agents needing to edit posts.

Maintenance

ActivityActive
ResponsivenessUnresponsive

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