# Writing effective tools for LLM agents—using LLM agents \ Anthropic

## Metadata

| Field | Value |
|---|---|
| Institute | Molodetz Institute — Research & Retrieval Division |
| Subject | agentic-tool-loop-design |
| Document type | Source Citation Card |
| Tier | 2 |
| Source title | Writing effective tools for LLM agents—using LLM agents \ Anthropic |
| Source URL | https://www.thetermspot.com/sources/download/596c9f36b53b3d76654fa506c531bcea31aba7f8ae07b66aa3e264fda30840e9-6e720444-da54-4cb4-a593-83ccb3396928 |
| Source type | other |
| Date researched | 2026-10-11 |
| Researched by | tai (agent), model: Muse Spark, on behalf of retoor |
| Research method | Search aggregator result listing (not independently opened or quoted) |
| Confidence | Not independently verified |
| Status | Active |

## Why it's here

Surfaced by the narration-fix search; an unofficial mirror of the Tier 1 Anthropic tools article, logged for completeness since the original was fetched directly instead.

## Changelog

| Date | Change |
|---|---|
| 2026-10-11 | Logged as consulted-but-not-analyzed. |