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AI Signals (Signals API)

by api.jiangzhang.ca · remote · no sign-in to list tools · v1.0.0 · published by ca.jiangzhang.api

Daily AI signals for agents: today's 4 signals, what changed, ranked models and repos

Deletes · 1Changes · 4
CompareRegistry entry

5 tools: 1 can delete or cancel things and 4 change things.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http signals-api https://data.jiangzhang.ca/signals4/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

5 tools

Deletes or cancels 1Claude Code: deny
  • archive_daysList the archived daily editions (dates) available from the free digest.No findings

    Why it is in this group

    • The name "archive_days" says "archive": a word for removing or ending something.
    Description, as the server wrote it
    List the archived daily editions (dates) available from the free digest. Use to find which dates can be cited.
Changes things 4Claude Code: ask
  • daily_signalsToday's AI signals from Signals API: exactly 4 items, one from each core source (GitHub, Hugging Face, YouTube, Silicon Valley news), each linking to the original.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Today's AI signals from Signals API: exactly 4 items, one from each core source (GitHub, Hugging Face, YouTube, Silicon Valley news), each linking to the original. Use when the user asks what's new in AI today.
  • top_modelsHugging Face models we track, with rank, rank change and 7-day momentum.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Hugging Face models we track, with rank, rank change and 7-day momentum. Entries without a derivable number are marked 'not ranked' with a reason instead of a guessed value.
  • top_reposGitHub repositories we track, with rank, rank change and momentum.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    GitHub repositories we track, with rank, rank change and momentum. Use when the user asks which open-source AI projects are trending.
  • what_changedWhat changed in the AI landscape since the previous snapshot: new entries, entities no longer seen, and rank movers.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    What changed in the AI landscape since the previous snapshot: new entries, entities no longer seen, and rank movers. Use when the user asks what's moving, rising, or different lately.

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http signals-api https://data.jiangzhang.ca/signals4/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [],
    "ask": [
      "mcp__signals-api__daily_signals",
      "mcp__signals-api__what_changed",
      "mcp__signals-api__top_models",
      "mcp__signals-api__top_repos"
    ],
    "deny": [
      "mcp__signals-api__archive_days"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as signals-api. Review it before you use it.