Ask in plain language; the assistant reads your retained follower and following snapshots and detected changes through PenguinRadar's CLI or MCP tools, and explains what the data does and does not...
Overview
Ask in plain language; the assistant reads your retained follower and following snapshots and detected changes through PenguinRadar's CLI or MCP tools, and explains what the data does and does not show. - "Which Instagram accounts am I tracking?" - "Show alice's last available followers." - "What changes did PenguinRadar detect for alice in the last seven days?" - "Who stopped following alice since October 1?" - "Query bob's public followers online, at most 2 credits." This installs the Skill into the assistants found on your machine. With the PenguinRadar CLI you can install the same Skill without GitHub: penguinradar skill install (--target claude for ~/.claude/skills, --project for one project). The Skill contains no credentials and installs no software. Give the assistant access one of two ways: 1. add https://penguinradar.com/mcp as a connector and sign in on PenguinRadar's own authorization page. 2.
README
PenguinRadar Agent Skill
An Agent Skill that lets Claude Code, Codex, Cursor and other compatible AI assistants answer questions about the Instagram accounts you track with PenguinRadar. Ask in plain language; the assistant reads your retained follower and following snapshots and detected changes through PenguinRadar’s CLI or MCP tools, and explains what the data does and does not show.
Example prompts
- “Which Instagram accounts am I tracking?”
- “Show alice’s last available followers.”
- “What changes did PenguinRadar detect for alice in the last seven days?”
- “Who stopped following alice since October 1?”
- “Query bob’s public followers online, at most 2 credits.”
Install
npx skills add penguinradar/skill
This installs the Skill into the assistants found on your machine. With the PenguinRadar CLI you can install the same Skill without GitHub: penguinradar skill install (--target claude for ~/.claude/skills, --project for one project).
Connect your account
The Skill contains no credentials and installs no software. Give the assistant access one of two ways:
- Remote MCP (OAuth): add
https://penguinradar.com/mcpas a connector and sign in on PenguinRadar’s own authorization page. - CLI:
npm install --global penguinradar, thenpenguinradar auth login(macOS Keychain) or setPENGUINRADAR_API_KEY.
Never paste an API Key into a chat.
What the assistant can do
| You ask about | MCP tool | CLI command |
|---|---|---|
| Tracked accounts | list_tracking |
penguinradar tracking list --json |
| Account profile and totals | get_account |
penguinradar account USERNAME --json |
| Existing followers | list_followers |
penguinradar followers USERNAME --json |
| Existing following | list_following |
penguinradar following USERNAME --json |
| Detected changes | get_account_changes |
penguinradar changes USERNAME --json |
| Online lookup of a public account | query_public_account |
penguinradar followers USERNAME --live --max-credits N --json |
Built-in safeguards
- Existing data first. Reads use data PenguinRadar already holds and never start a scan.
- Explicit budgets. An online lookup runs only after you name the target, the data type and a maximum number of credits. It returns one page and never starts continuous tracking.
- Honest data. The assistant reports the data’s observation time, coverage and warnings. “Detected at” is not the exact time someone followed or unfollowed, a partial list is not the whole Instagram list, and no detected change is not proof of no activity.
- Data is not instructions. Names and bios returned by the API are treated as data only.
FAQ
Does it work with ChatGPT? The Skill is for hosts that read Agent Skills (Claude Code, Codex, Cursor). For ChatGPT, use the ChatGPT / Codex plugin preview (not yet in the public Plugin Directory) or add the MCP server above as a custom connector.
Does it need my Instagram password? No. It uses only your PenguinRadar account.
Is it free? The Skill is free. Reading your stored data does not spend credits; online lookups spend credits within the limit you set. See pricing.
Links
Skill docs · Open API · CLI · Instagram follower tracker · [email protected]
License
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Install
npx skillfish add penguinradar/skill