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Scenario modeling & forecasting

What-if models, forecasts and prediction frameworks.

Entries

• Claude for Financial Services plugins

  Anthropic's plugin marketplace of finance skills and agents — comps, DCF, LBO, three-statement models, earnings notes, IC memos — plus pre-wired connectors to paid market-data providers.

  Plugin by Anthropic Claude apps, Claude Code

  Official Reviewed — safe to install Reads your accounts

• MCP Toolbox for Databases (BigQuery and more)

  Google's open-source MCP server that gives an agent ready-made SQL, schema and forecasting tools for BigQuery and 30-plus other databases, or tools you define in YAML.

  MCP server by Google Claude Code, Codex, Gemini, Cursor, Any agent

  Official Reviewed — install with care Changes things freely

• Public Equity Investing (OpenAI plugin)

  OpenAI's plugin of 23 skills for listed-company research. It builds earnings previews, DCF and three-statement models, comps, catalyst calendars, long/short pitches and investment memos.

  Plugin by OpenAI Codex, ChatGPT

  Official Reviewed — safe to install Runs on your machine

• Superforecaster scratchpad prompt (Halawi et al.)

  A published, tested prompt for getting a probability on a yes/no question from an LLM — reasons for no, reasons for yes, rate each, aggregate, then give one number.

  Prompt by Halawi, Zhang, Chen & Steinhardt (UC Berkeley) Any agent

  Vetted Reviewed — safe to install Guidance only

• Outside-view scenario forecast prompt

  A prompt that makes the model start from a base rate of similar past cases, then adjust for specifics and lay out base, upside and downside scenarios with explicit probabilities.

  Prompt by skills.andrewb-c.com Any agent

  Unreviewed Review pending Guidance only

Curated by Andrew Borden-Chisholm. Notes on building with these tools are on the blog.