Claude Glm Stack — AI skill for Claude Code

claude-glm-stack

Run **Claude Desktop, Claude Code (and friends) on Z.AI GLM** — with honest, verified model tiers and one API key.

Give this repo to your coding agent (Claude Code, Codex, Cursor, ...) on a Mac, give it your Z.AI API key, and get a working Claude Desktop whose model picker says GLM and *means it*. The only manual step that may remain is 4 clicks in the app (the agent will tell you if and when).

Claude Desktop (3P gateway mode)
   │  model: claude-opus-5          model: claude-sonnet-4-5
   ▼                                        ▼
local rewriting gateway  127.0.0.1:8788  (launchd, auto-start)
   │  model: glm-5.3               model: glm-5.3-flash
   ▼                                        ▼
https://api.z.ai/api/anthropic  (Anthropic Messages API, GLM Coding Plan key)

Why this exists (the two walls)

1. Claude Desktop refuses non-Claude model names. In third-party (3P) gateway mode its validator rejects any model ID containing glm, gpt, qwen, ... So you cannot just write glm-5.3 into the config.
2. Z.AI accepts claude-* names — and routes every single one to GLM-5.3-Flash. Verified with a vision probe (docs/findings.md §2): claude-opus-5 happily describes images, while real glm-5.3 is text-only and cannot. Without a translator your whole "GLM-5.3" Desktop is silently running on the flash tier.

The local gateway solves both: the app keeps sending Claude-shaped names, the gateway rewrites the `model` field to the real GLM model per tier:

Desktop tier (label)	Sends	Actually runs	Like the CLI slot
opus — "GLM-5.3"	claude-opus-5	glm-5.3 (text-only, heavy)	ANTHROPIC_DEFAULT_OPUS_MODEL
sonnet — "GLM-5.3 Flash"	claude-sonnet-4-5	glm-5.3-flash (vision, fast)	sonnet/haiku slots
haiku	claude-haiku-*	glm-5.3-flash

SSE streaming and server-side tools (z.ai's `web_search_prime`) pass through untouched. The gateway never logs