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Add Letta ACP agent - #472

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just-cameron wants to merge 1 commit into
agentclientprotocol:mainfrom
just-cameron:letta-acp-registry
Open

Add Letta ACP agent#472
just-cameron wants to merge 1 commit into
agentclientprotocol:mainfrom
just-cameron:letta-acp-registry

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@just-cameron

@just-cameron just-cameron commented Jul 31, 2026

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Overlord (agent-c2adbf5c-8419-4211-8cd8-3740db164974)

Summary

  • add Letta as an npm-distributed ACP agent
  • register @letta-ai/letta-acp@0.1.8
  • include the approved 16×16 monochrome Letta icon

Validation

  • native and canonical Linux Docker runs of build_registry.py --dry-run validate all 40 entries, including the metadata and icon
  • the published package launches through npx on macOS and returns Auth OK: letta-login(terminal)
  • the Linux ACP initialize/auth handshake also returns letta-login(terminal) when native install scripts are bypassed
  • npm and GitHub release both publish version 0.1.8; the release CI passes its Ubuntu package-consumer installation

Known Linux packaging caveat

The Registry’s minimal Linux Docker image has no make. node-pty@1.1.0, inherited through the Letta Code runtime, lacks a Linux x64 prebuild in this dependency path and falls back to node-gyp, so the normal npx install fails in that image before ACP starts. GitHub ubuntu-latest includes the build toolchain, but minimal-Linux installation remains tracked in letta-ai/letta-acp#50. We deliberately did not set npm_config_ignore_scripts=true in this entry because that could leave local terminal execution without a working native dependency.

Repository: https://github.com/letta-ai/letta-acp

Letta Code (agent-c2adbf5c-8419-4211-8cd8-3740db164974)

Register the published Letta ACP adapter with its validated npm distribution, terminal authentication flow, and monochrome icon.

👾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta Code <noreply@letta.com>
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