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social-inbox

social-inbox is a skill for Claude Code from peturgeorgievv-factory/postfast-mcp. It costs 73 tokens per session (894 once invoked), scanned A, original, MIT.

A comment-management tool for PostFast's social inbox, which collects comments on an account's own posts. It covers TikTok, Instagram, Facebook Pages, and Threads, but not private messages.

In plain words
What is it for?
Use it to find new comments, reply publicly or privately where supported, hide or delete comments, and triage or assign comment conversations.
Why use it?
It brings comment reading, moderation, replies, and assignment into one workflow while checking whether each platform currently permits a reply.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the postfast plugin — 2 skills, 2 MCP servers shipped together

not rated 5repo 19d ago A scan 73 tokens original MIT

Good fit Use it to find new comments, reply publicly or privately where supported, hide or delete comments, and triage or assign comment conversations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/peturgeorgievv-factory/postfast-mcp/social-inbox
View source ↗ peturgeorgievv-factory/postfast-mcp postfa.st
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add peturgeorgievv-factory/postfast-mcp --skill social-inbox
Clone the repo
git clone --depth 1 https://github.com/peturgeorgievv-factory/postfast-mcp

Made for: Claude Code.

Or install postfast, the plugin that ships this one along with the rest of its 2 skills, 2 MCP servers.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for social-inbox

README.md
[![agentmods](https://agentmods.dev/badge/skills/peturgeorgievv-factory/postfast-mcp/social-inbox/github.svg)](https://agentmods.dev/skills/peturgeorgievv-factory/postfast-mcp/social-inbox)
Your own site
<a href="https://agentmods.dev/skills/peturgeorgievv-factory/postfast-mcp/social-inbox"><img src="https://agentmods.dev/badge/skills/peturgeorgievv-factory/postfast-mcp/social-inbox/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for social-inbox

Your own site · 80×15
<a href="https://agentmods.dev/skills/peturgeorgievv-factory/postfast-mcp/social-inbox"><img src="https://agentmods.dev/badge/skills/peturgeorgievv-factory/postfast-mcp/social-inbox.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 894 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00073 $0.00894
Opus 5 $0.00036 $0.00447
Sonnet 5 $0.00015 $0.00179
Haiku 4.5 $0.00007 $0.00089

Measured 12d ago against content hash 8d0bd9c9115d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

social-inbox scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/social-inbox/SKILL.md · 40 lines

How it starts

The opening of the file, as written. The whole thing — 40 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Social Inbox (comments) via PostFast

You have access to PostFast MCP inbox tools — a comments inbox for the workspace's own posts. It is never a DM/messages inbox. Covered platforms: TikTok, Instagram, Facebook Pages, Threads — an account's inboxCapable flag (from list_accounts) is the authority on what is live today. Not covered: X, YouTube, Pinterest, Bluesky, Telegram, Google Business Profile, LinkedIn. Comments appear from connect/launch onward — there is no history backfill.

The one rule that overrides everything

Reply capability is server-computed per conversation: canReply, maxReplyLength, windowState, disabledReason. Always read and obey these fields — never assume a platform allows replying or guess a length limit. If canReply is false, tell the user why via disabledReason instead of attempting the call.

Reading workflow

  1. Unread check — get_inbox_unread_count for the workspace total.
  2. List conversations — list_inbox_conversations (newest activity first). Filter by platforms, socialMediaIds, statuses (OPEN/SNOOZED/CLOSED), unreadOnly, or assignedToUserId. Each row carries the capability fields plus unreadCount and status.
  3. Open a thread — list_inbox_items with the conversationId (oldest first; order: "DESC" for newest first). Items have direction (INBOUND/OUTBOUND), state (VISIBLE/HIDDEN/DELETED), author info, and on Instagram comments canPrivateReply.
  4. Mark it read — call mark_inbox_conversation_read after presenting a thread to the user.

Replying

  • Public reply — reply_to_inbox_item with the comment item's id (not the conversation id). Respect maxReplyLength (platform caps as context: TikTok 1,200, Instagram 2,200, Facebook 8,000, Threads 500 — the fields are authoritative). Confirm the reply text with the user before sending; it posts publicly.
  • Instagram private reply — send_inbox_private_reply, only where the item's canPrivateReply is true: exactly one per comment, within 7 days of the comment, up to 1,000 bytes (emoji count multi-byte), and it may land in the recipient's Message Requests. A second attempt fails with inbox.privateReplyAlreadySent.
  • Replies sent through PostFast appear once in the thread — no duplicates when the platform confirms them.

Read the full file on GitHub · 40 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 40 lines · 73 tokens per session scan A 8d0bd9c9115d

Subscribe to this mod's changes

social-inbox is a skill published in the GitHub repository peturgeorgievv-factory/postfast-mcp (5 stars, last pushed 19d ago), licensed MIT. It adds 73 tokens to every session and 894 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Marketing and SEOaiclaudemcpmodel-context-protocolschedulingsocial-media
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