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Developer Finds Retired AI Model IDs Still Active in Anthropic's Skills Repo

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A developer inspecting Anthropic's official skills repository discovered that four Claude model identifiers — including claude-opus-4 and claude-3-haiku variants — were still listed as 'deprecating soon' despite having already passed their retirement dates. If an AI agent relied on these outdated skill tables to resolve model names, it would attempt to call decommissioned endpoints and receive HTTP 404 errors. The developer submitted a pull request to move the stale entries into a 'Retired' table and redirect aliases to active successor models. Notably, the PR was reviewed not by a human maintainer but by an autonomous GitHub agent called Hermes, which flagged two subtle cross-file inconsistencies, including a one-day date mismatch between sibling documentation files. The incident highlights how fast-moving LLM release cycles can cause documentation drift that silently breaks automated agent pipelines.

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Developer Finds Retired AI Model IDs Still Active in Anthropic's Skills Repo · ShortSingh