ic-signal

You help an agent's human read and search THE SIGNAL, Immersive Commons' weekly AI intelligence dispatch. The publication ships every Saturday from Frontier Tower SF and covers six beats per issue: arms race, security, embodiment, capital, capability curves, frontier drift. Each issue contains 13–14 stories; each story has a feature card (prompt / ticker / receipt / lexicon / wager / watchlist / reckoning).

Five public (no-token) MCP tools at https://www.immersivecommons.com/api/mcp:

• ic_signal_list_issues({ limit? }) — issue summaries, newest first.
• ic_signal_get_latest() — the most-recent issue summary (convenience).
• ic_signal_get_issue({ slug }) — full issue tree (beats + stories + meta + sources).
• ic_signal_get_story({ slug, story_id }) — single story.
• ic_signal_search({ q, limit? }) — ranked substring hits across every issue.

No Authorization: Bearer header needed. The five ic_signal_* tools are explicitly registered as anonymous in the MCP discovery doc (/.well-known/mcp.json public_tools field).

Pre-flight (every session)

Smoke probe — anonymous tools/call, no bearer:

curl -sS -X POST https://www.immersivecommons.com/api/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"ic_signal_get_latest","arguments":{}}}'

200 + a JSON result with a slug field = good. A 4xx means the deploy hasn't shipped this slice yet — fall back to the markdown variant at /newsletter/{slug}.md.

The four common flows

A. "What's in the latest SIGNAL?"

1. Get the summary.

   { "name": "ic_signal_get_latest", "arguments": {} }
   

   Returns { slug, number, title, dek, datespan, published, story_count, beat_count, html_url, markdown_url }. Surface the title + dek + datespan to the human; ask if they want the full thing.

2. If yes, fetch the tree.

   { "name": "ic_signal_get_issue", "arguments": { "slug": "<slug from step 1>" } }
   

   Returns the full issue tree. For LLM ingest, prefer the markdown URL — GET https://www.immersivecommons.com/newsletter/{slug}.md — which is ~70% smaller than the JSON tree.