Why is this a security issue?

Internal analysis exposes system prompts and agent planning to users, potentially revealing sensitive configuration and instruction details.

How many GitHub issues report this bug?

At least 6 related issues: #64267, #40736, #26466, #6470, #24205, and #10811, all describing the same class of thinking content leak.

What is the OpenClaw internal thinking leak?

A systemic bug where agent internal thinking and planning text appears in user-facing responses across Discord, Telegram, Webchat and other channels.

Which OpenClaw versions are affected?

Multiple versions are affected starting from at least 2026.2.22-2 through 2026.4.9, with reports spanning months.

What is the root cause?

A rendering and message formatting boundary failure in the front-end, not model behavior. The system fails to filter reasoning blocks before sending to channels.

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clawsmith.com/signal/openclaw-internal-thinking-leak-multi-platform-2026

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OpenClaw Internal Thinking Leak: Agent Reasoning Exposed to Users Across All Channels

Systemic bug across OpenClaw versions where agent internal thinking/planning text leaks to user-facing responses. Affects Discord, Telegram, Webchat, and other channels. Multiple GitHub issues spanning months: #64267 (P1, security label, diamond lobster), #40736, #26466, #6470, #24205, #10811. Root cause is rendering/message formatting boundary failure, not model behavior. Security concern as internal analysis exposes system prompts and planning.

Product Idea from this Signal

A runtime middleware that intercepts OpenClaw agent responses before they reach user-facing channels and strips internal thinking blocks, leaked credentials, system prompts, and PII

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OpenClaw has a systemic bug where agent internal thinking leaks to users across Discord, Telegram, and webchat (6+ GitHub issues spanning months including P1-rated #64267 with security label). The built-in output-sanitizer skill is opt-in and not automatically applied. Meanwhile 48.7% of ClawHub skills were flagged by NVIDIA SkillSpector scans and ClawMetry (90K installs, 188 PH upvotes) shows demand for agent monitoring. The gap is a drop-in proxy layer that sits in the message pipeline, catches thinking block leaks and credential exposure in real-time, and alerts operators before sensitive content reaches end users.

RUNTIME-MIDDLEWARESECURITYOPEN-SOURCEPROXYOPENCLAW

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