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User Preferences / Instructions to force problem-solving thinking

Reddit · SyChoticNicraphy · April 18, 2026
An author identified a problem where Opus 4.7 would reflexively answer questions without addressing the user's actual intent and created a detailed system instructions prompt to circumvent this failure mode. The prompt guides the model to identify implicit loss functions, check whether problems are being addressed at the wrong scale, decompose tensions across multiple dimensions, and continuously realign responses to the original intent rather than drifting toward easier adjacent problems. Using these instructions in project or user settings reportedly produces better results.

Detailed Analysis

A community-developed system prompt, shared by a Claude power user, attempts to address what the author characterizes as a fundamental failure mode in Claude's reasoning: the tendency to answer a surface-level interpretation of a question rather than the underlying intent the user actually cares about. The prompt, designed for placement in Claude.ai's persistent user or project instructions, introduces a layered pre-response protocol. Before generating any reply, the model is directed to identify the implicit "loss function" of the user's question — essentially, what objective the question is inadvertently optimizing versus what the user genuinely needs — and to decompose the core tension of a problem across dimensions including magnitude, controllability, novelty, and timescale. The author invokes the "car wash test" as a representative example of the failure being targeted: a scenario in which an AI produces a fluent, grammatically coherent, but fundamentally misaligned answer because it pattern-matches to a statistically common response rather than reasoning through the actual question being asked.

The prompt's architecture reflects a sophisticated understanding of how large language models can fail even at high capability levels. Several of its directives specifically target what might be called "low-viscosity" outputs — responses that slide toward easy, adjacent interpretations of a question rather than grappling with the original intent. Instructions such as "if it has drifted toward an easier adjacent need or collapsed into a low-viscosity statistical default, discard that framing and re-approach from the original intent" are essentially asking the model to perform a self-audit before finalizing output. Additional directives mandate that every response include one unverified assumption stated naturally in the text and one acknowledged point of likely error — a structural epistemic humility mechanism. The instruction to track "conversation age" through the ratio of novel concepts to back-references, and to distinguish between convergent and divergent conversational phases, suggests an attempt to make Claude dynamically adaptive rather than statically responsive throughout a session.

This kind of community prompt engineering sits within a broader context of how Anthropic has built Claude's customization infrastructure. Claude.ai supports persistent user preferences through its Settings → Profile interface, allowing instructions to apply globally across all new conversations without repetition. More granular, project-specific instructions can be scoped to individual workspaces. Anthropic's own engineering documentation on the "think" tool — a structured reasoning pause available via API — reflects the company's recognition that forcing deliberate intermediate reasoning steps improves performance on complex, multi-step tasks. The community prompt effectively replicates and extends this philosophy at the user instruction layer, applying structured reasoning scaffolding without requiring API access or developer-level tooling.

The broader trend this article exemplifies is the emergence of an informal but increasingly sophisticated ecosystem of prompt engineering knowledge shared among advanced Claude users. As models like Claude grow more capable, the failure modes that attract the most community attention shift from factual errors to subtler misalignments — cases where the model is technically coherent but practically unhelpful because it solved the wrong problem. The emphasis in this prompt on multi-agent perspective-taking ("for all agents in the scenario, not just the user"), backward reasoning from end-states, and mode-switching between abstraction and concretization reflects reasoning frameworks drawn from systems thinking, decision theory, and cognitive science. This suggests that the most engaged segment of Claude's user base is beginning to apply structured intellectual frameworks — rather than simple keyword hacks — to improve model behavior, pushing toward something closer to guided metacognition than traditional prompt manipulation.

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