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:

ic-signal

Pre-flight (every session)