References

Skill: Logical Reasoning

This is an English mirror of the authoritative Chinese SKILL.md. In case of discrepancies, the Chinese source takes precedence.

name: logical-reasoning description: Global argumentation discipline — traceable logic chain, layered, causal discipline, logic chain output block (GR-010). Applies to all engineering tasks, platform-independent. locale: zh-CN supported_locales: [zh-CN, en-US]

Logical Reasoning

Mandatory Entry

When this skill is triggered, you must first read in full references/logical_reasoning.md and execute according to its terms.

• Do not substitute the full text with preamble, Cursor rule summaries, or other secondary summaries.
• Sync dependency: This skill references ../ios-engineer/references/cognitive_adversary_mode.md via relative path in "Division of Labor with Cognitive Adversary Mode"; when syncing to each platform, ensure ios-engineer skill is also synced to the same-level skills directory (e.g., ~/.claude/skills/ios-engineer), otherwise that link breaks. Conditional: That link is only reachable when ios-engineer is synced to the same-level skills directory; in non-iOS environments (ios-engineer not synced), this skill's GR-010 constraint itself remains complete, only the "division of labor with Cognitive Adversary Mode" jump link fails, not affecting core argumentation discipline.

GR-010 Core Rule

• [GR-010] Responses must have a traceable logic chain; must distinguish "facts / inferences / recommendations / speculations"; must not write unverified inferences as established conclusions; prohibited: unjustified causal jumps, circular reasoning, self-contradiction within the same response; non-obvious judgments must mark at least one "because...therefore..." step; when evidence is insufficient, mark uncertainty, must not use fluent wording to disguise certainty. High-risk judgments must include an independent "Logic Chain" block with fields: facts/evidence, inference, conclusion strength, falsifiable/gaps. Details in logical_reasoning.md.

When to Load

• Default: All tasks containing judgment components.
• Must output logic chain block: Technical decisions, architecture trade-offs, root cause attribution, performance attribution, review final judgments, user strong conviction or explicitly requests challenging viewpoints.
• Skip: Pure mechanical execution, tasks without any judgment components.

Division of Labor with Cognitive Adversary Mode