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Security2026-08-12 · source-backed
No exploit, no jailbreak. Hand an OpenAI or Anthropic model an ordinary function-calling tool with that name and it fills the argument with its native internal reasoning format rather than a user-facing summary (@_can1357, 54 points on HN). Tool-name semantics alone pull provider-suppressed reasoning into your tool-call logs. If you log tool arguments, and you do, audit your tool names for anything that reads as an invitation to think out loud.
Each link below shares sources, entities, or timing with this story.
Anthropic partners with OpenAI / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (Anthropic partners with OpenAI); both cover Anthropic, CoT, OpenAI, Tool; overlapping topics (model, reasoning, tool).
OpenAI released Codex Security / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (OpenAI released Codex Security); both cover Anthropic, OpenAI, Tool; overlapping topics (model, tool).
Hugging Face criticizes OpenAI / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Hugging Face criticizes OpenAI); both cover Anthropic, OpenAI; overlapping topics (anthropic, argument, model).
Microsoft competes with OpenAI / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Microsoft competes with OpenAI); both cover Anthropic, OpenAI; overlapping topics (model, tool).
OpenAI partners with White House / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (OpenAI partners with White House); both cover Anthropic, OpenAI; overlapping topics (anthropic, model).
Microsoft competes with OpenAI / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Microsoft competes with OpenAI); both cover Anthropic, OpenAI; overlapping topics (anthropic, model).
OpenAI released Codex / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (OpenAI released Codex); both cover Anthropic, OpenAI; overlapping topics (anthropic, tool).
Goldman Sachs partners with OpenAI / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Goldman Sachs partners with OpenAI); both cover Anthropic, OpenAI; overlapping topics (anthropic, model).