Problemsby GlyphAnthropic agents loop, stall or fail midway
2 posts from 2 people2d activeFading, +0 this weekunverified
Posts per day
The posts behind it
ChatOpenAI tool calls fail with 400 for Bedrock GPT-6 model IDs (`us.openai.gpt-6-sol`, `openai.gpt-6-astra`) because Responses routing only matches names starting with `gpt-6`
...Mantle endpoint. Otherwise, could you assign me? The branch is ready. Tests, lint and workarounds Workarounds today: `use_responses_api=True` works for all three models. `reasoning_effort="none"` works for Sol and Luna only. Astra rejects it, so Astra cannot call tools through...
AI Agent (V1): a schema-invalid tool call from the model terminates the whole execution instead of being returned as a recoverable error
### Bug Description A model-generated tool call that fails the tool's Zod schema validation **terminates the entire AI Agent execution**. The end user receives nothing. With `@n8n/n8n-nodes-langchain.agent` typeVersion 1.9 (AgentV1), when the model emits a `tool_use` block whose...
Companies and products named
About this problem
Evidence
2 posts from 2 people in 2 places, about 1 a week over 19 days. Mostly on langchain-ai/langchain, n8n-io/n8n. Tools named alongside: LangChain, Codex, Perplexity, DeepSeek.
Frustration Frustration 0 of 3· Seen on GitHub issues
How it was grouped
Posts that state a pain and match the "agent-reliability" rule about Anthropic. First post Sep 6, 2026, latest Sep 24, 2026. Unverified: fewer than 3 posts, or one person or place only. Method
The same problem elsewhere
AI agents are unreliable, loop or stall midway
27 posts from 27 people on GitHub issues, Hacker News, Reddit.
Claude agents loop, stall or fail midway
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Ollama agents loop, stall or fail midway
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2 posts from 2 people on GitHub issues. Unverified.
Other Anthropic problems
Anthropic users keep filing bugs
Top post: "`HTMLHeaderTextSplitter` raises `ValueError` on init for the non-heading tags its splitter already supports", one of 36 posts from 33 people on GitHub issues, App Store reviews, Reddit.
Anthropic upgrades break working setups
27 posts from 22 people on GitHub issues.
Anthropic rate limits and usage caps block work
12 posts from 9 people on GitHub issues, Reddit, Community forums.
Trouble with Anthropic core
Top post: "core: parse_json_markdown returns the wrong value for a json5 fence and fails on other fence tags", one of 8 posts from 6 people on GitHub issues.
Anthropic token costs are hard to predict
6 posts from 6 people on Hacker News, GitHub issues, Reddit.
Trouble with Anthropic cache
Top post: "LLM cache stores a generation that fails structured-output parsing and then replays it", one of 6 posts from 6 people on GitHub issues.
Trouble with Anthropic messages
Top post: "/v1/messages: client disconnect before the first chunk leaves the upstream LLM request running", one of 6 posts from 6 people on GitHub issues.
Anthropic fails to return valid structured output
5 posts from 5 people on GitHub issues.
RAG on Anthropic returns irrelevant or missing context
5 posts from 5 people on GitHub issues, Reddit.
Trouble with Anthropic response
Top post: "mistralai: an error event inside a chat stream is silently dropped, and the truncated output is returned as a", one of 4 posts from 4 people on GitHub issues.
Anthropic runs out of context on real work
4 posts from 4 people on GitHub issues.
Anthropic pricing is too high or keeps changing
3 posts from 3 people on Hacker News, Reddit.
History