infoproviders-lookup-data — community infoproviders-lookup-data, brrr-generator, community, ide skills, Claude Code, Cursor, Windsurf

v1.0.0
GitHub

About this Skill

Ideal for Tax Compliance Agents requiring accurate brokerage account tax report generation for various countries Generate Tax reports of your brokerage account for your country's Tax Authority

MarjanDB MarjanDB
[0]
[0]
Updated: 3/4/2026

Agent Capability Analysis

The infoproviders-lookup-data skill by MarjanDB is an open-source community AI agent skill for Claude Code and other IDE workflows, helping agents execute tasks with better context, repeatability, and domain-specific guidance.

Ideal Agent Persona

Ideal for Tax Compliance Agents requiring accurate brokerage account tax report generation for various countries

Core Value

Empowers agents to resolve ISIN to company information and country names to 2-letter codes and treaty details using JSON lookup files like missingCompaniesLookup.json and missingISINLookup.json, facilitating comprehensive tax reporting

↓ Capabilities Granted for infoproviders-lookup-data

Generating tax reports for brokerage accounts
Resolving company information from ISIN codes
Determining country-specific treaty formats for tax compliance

! Prerequisites & Limits

  • Requires access to country-specific tax authority documentation
  • Dependent on online lookup services for company and country data
  • Fallback to local JSON files for missing data
Labs Demo

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infoproviders-lookup-data

Install infoproviders-lookup-data, an AI agent skill for AI agent workflows and automation. Works with Claude Code, Cursor, and Windsurf with one-command...

SKILL.md
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InfoProviders and lookup data

Generic guidance for src/InfoProviders/ and the JSON lookup files. Country-specific use (e.g. treaty format) may be documented in a tax-authority skill.

Where lookups are used

  • CompanyLookupProvider – Resolves ISIN to company info (name, address, country). Tries online lookup first; falls back to missingCompaniesLookup.json and missingISINLookup.json.
  • CountryLookupProvider – Resolves country name to 2-letter code and treaty info. Uses internationalTreaties.json and specialCountryMappings.json.

Tax authority report generation and staging processors use these when annotating events (e.g. company domicile, treaty relief).

When to edit which file

SymptomLikely fix
"Failed processing stock lot" or "Failed lookup of ISIN"Lot or event has an identifier (ISIN/ticker) the pipeline can’t resolve. Add or correct an entry in missingISINLookup.json (ISIN → ticker for online lookup) or missingCompaniesLookup.json (ISIN → full company object for offline fallback).
Wrong or missing company name/addressAdd or update entry in missingCompaniesLookup.json for that identifier (e.g. ISIN).
Online lookup fails for a known ISIN/tickerAdd missingISINLookup.json entry: key = ISIN, value = ticker symbol used by the lookup service (e.g. for yfinance).
Wrong country code or unknown country nameAdd or update specialCountryMappings.json: key = country name as in broker/data, value = 2-letter ISO code.
Treaty reference (e.g. tax relief) for a countryAdd or update internationalTreaties.json under the structure used by CountryLookupProvider (e.g. treaties by country code). Exact key/value format is defined by the tax authority; see country-specific skill if applicable.

File formats (generic)

  • missingISINLookup.json – Object: identifier (e.g. ISIN) → string (e.g. ticker). Used when resolution by identifier fails so the provider can try again with the mapped value.
  • missingCompaniesLookup.json – Object: identifier (e.g. ISIN) → company object. Company object typically has fields such as shortName, longName, address1, address2, city, zip, country (and optionally state). Used when no online company data is available.
  • specialCountryMappings.json – Object: country name (as in data) → 2-letter country code. Overrides default country resolution.
  • internationalTreaties.json – Nested structure (e.g. treaties.taxRelief) keyed by country code; values are treaty references. Structure and semantics depend on the tax authority; see country skill for details.

All paths are under src/InfoProviders/. After editing, re-run the pipeline; no separate reload step is required.

FAQ & Installation Steps

These questions and steps mirror the structured data on this page for better search understanding.

? Frequently Asked Questions

What is infoproviders-lookup-data?

Ideal for Tax Compliance Agents requiring accurate brokerage account tax report generation for various countries Generate Tax reports of your brokerage account for your country's Tax Authority

How do I install infoproviders-lookup-data?

Run the command: npx killer-skills add MarjanDB/brrr-generator. It works with Cursor, Windsurf, VS Code, Claude Code, and 19+ other IDEs.

What are the use cases for infoproviders-lookup-data?

Key use cases include: Generating tax reports for brokerage accounts, Resolving company information from ISIN codes, Determining country-specific treaty formats for tax compliance.

Which IDEs are compatible with infoproviders-lookup-data?

This skill is compatible with Cursor, Windsurf, VS Code, Trae, Claude Code, OpenClaw, Aider, Codex, OpenCode, Goose, Cline, Roo Code, Kiro, Augment Code, Continue, GitHub Copilot, Sourcegraph Cody, and Amazon Q Developer. Use the Killer-Skills CLI for universal one-command installation.

Are there any limitations for infoproviders-lookup-data?

Requires access to country-specific tax authority documentation. Dependent on online lookup services for company and country data. Fallback to local JSON files for missing data.

↓ How To Install

  1. 1. Open your terminal

    Open the terminal or command line in your project directory.

  2. 2. Run the install command

    Run: npx killer-skills add MarjanDB/brrr-generator. The CLI will automatically detect your IDE or AI agent and configure the skill.

  3. 3. Start using the skill

    The skill is now active. Your AI agent can use infoproviders-lookup-data immediately in the current project.

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