A 16-tool MCP server turns Claude into a Reddit lead-gen agent
Distinct-Expression2 · reddit · 2026-07-23
A founder built an MCP server that turns Claude into a Reddit lead-generation agent.
- The tool, Grabbit, now ships an MCP server with 16 tools.
- In a real end-to-end run, Claude searched threads, checked subreddit rules for self-promotion, read full discussions, drafted replies, and marked entries as replied.
- The author shares several tool-surface lessons:
- Tool descriptions should act like prompts, with syntax examples embedded directly in the description.
- Consistent verb naming (list, get, search, create, etc.) helped the model choose the right tools.
- Payload limits matter: a 100-comment Reddit thread can exceed 60 KB, so they capped comments to 50 with 500-character bodies.
- Enum-style filters such as relevancy:high and intent:buying worked better than free-text filters.
- The post is both a product update and a practical design note on building usable MCP surfaces.
More from coding & agent
- Open-source Codex Security plugin can model threats, test fixes, and export to Jira or SARIF — MaziyarPanahi · 2026-07-23
- AI Agents End the Era of Deep Work, Ushering in a 'Shallow Work' Future — nptacek · 2026-07-23
- Claude is easier than the AWS console for building network topology HTML views — generativist · 2026-07-23
- Codex users report a frequent “thinking longer” delay over SSH — chaumian · 2026-07-23
- Kling shows an MCP workflow for cinematic AI video generation — Eric520CC · 2026-07-23
- GPT 5.6 Sol reportedly wrote a Laguna S2.1 inference implementation almost unaided — antirez · 2026-07-23