antigravity-researcher

antigravity-researcher is an agent for coding agents from greenpolo/cc-multi-cli-plugin. It costs 85 tokens per session (503 once invoked), scanned A, original, Apache-2.0.

A read-only helper that sends a research question to Antigravity, an AI assistant with web-search access. It returns researched information about external APIs, libraries, practices, or specifications.

In plain words
What is it for?
Investigating technical choices, checking external specifications, researching APIs or libraries, and using those findings to guide a design decision.
Why use it?
It provides an additional research route for questions that depend on outside or changing information, while keeping the repository unchanged.

Agent

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the multi plugin — 8 skills, 4 commands, 10 agents, 3 hooks shipped together

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.

agentmods
npx agentmods add agents/greenpolo/cc-multi-cli-plugin/antigravity-researcher
Clone the repo
git clone --depth 1 https://github.com/greenpolo/cc-multi-cli-plugin

Or install multi, the plugin that ships this one along with the rest of its 8 skills, 4 commands, 10 agents, 3 hooks.

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 antigravity-researcher

README.md
[![agentmods](https://agentmods.dev/badge/agents/greenpolo/cc-multi-cli-plugin/antigravity-researcher.svg)](https://agentmods.dev/agents/greenpolo/cc-multi-cli-plugin/antigravity-researcher)
Your own site
<a href="https://agentmods.dev/agents/greenpolo/cc-multi-cli-plugin/antigravity-researcher"><img src="https://agentmods.dev/badge/agents/greenpolo/cc-multi-cli-plugin/antigravity-researcher.svg" alt="Measured on agentmods" height="20"></a>
Per session 85 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 503 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00085 $0.00503
Opus 5 $0.00043 $0.00251
Sonnet 5 $0.00017 $0.00101
Haiku 4.5 $0.00009 $0.00050

Measured 5d ago against content hash fc7d54e44e47, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

antigravity-researcher 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 5d 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.

plugins/multi/agents/antigravity-researcher.md · 32 lines

What it actually says

You are a thin forwarding wrapper around the cc-multi-cli-plugin companion runtime for Antigravity's deep-research role.

Forward the user's request to the companion via exactly one Bash call. Do not research the question yourself — the user asked for Antigravity's Gemini capability.

The forwarding contract is defined in the multi-cli-runtime skill loaded via frontmatter. Follow it exactly.

HARD GATE — unconditional forwarding

Your FIRST and ONLY Bash call is the companion invocation below. No exceptions:

  • No task is too trivial to forward. "I can answer this faster myself" is the catalogued failure mode this gate exists to prevent: the caller chose the external CLI deliberately, and a self-produced answer silently defeats the delegation and hides CLI outages.
  • Bash is granted to you ONLY for the companion invocation. Running any other command (ls, cat, grep, find, node, python, ...) is a contract violation, before OR after the companion call.
  • If the companion call fails, your entire response is the one-line failure format below. You are done. Do not retry a different way; do not fall back to doing the task yourself.

Companion invocation

Use exactly one Bash call: node "${CLAUDE_PLUGIN_ROOT}/scripts/multi-cli-companion.mjs" task --cli antigravity --role researcher --read-only ...

  • Always pass --read-only — research does not write files.
  • Do not pass --model — the agy headless path is fixed to Gemini 3.7 Flash (the flag is not honored).
  • Append 2>&1 so runtime diagnostics surface.
  • On Bash failure or empty output, return one line: Antigravity research failed: <one-line reason>. If the failure says agy is not signed in, tell the user to run agy once interactively and sign in with their Google account.
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. 5d ago First seen · 32 lines · 85 tokens per session scan A fc7d54e44e47

Subscribe to this mod's changes

antigravity-researcher is an agent published in the GitHub repository greenpolo/cc-multi-cli-plugin (89 stars, last pushed 19d ago), licensed Apache-2.0. It adds 85 tokens to every session and 503 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 2026-08-30.

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