sequential-analysis
Structured multi-step reasoning with revision capability. For complex problems, root-cause investigation, ambiguous scope.
What this skill does
# sequential-analysis Wraps `sequential-thinking` MCP (or equivalent). Used for multi-step reasoning where revisions matter. ## Behavior contract 1. Break problem into discrete thought steps (start with estimate of N steps). 2. For each step: state the thought, identify any new ambiguity, note dependencies. 3. Revision support: if a later step exposes that an earlier step was wrong, mark it as revised; re-derive downstream. 4. Branch support: if multiple viable directions exist, branch; track each branch ID; merge winning branch back to main. 5. Hypothesis verification: end-state hypothesis must be verified by tracing the chain of reasoning back to evidence. ## When to use - Plan author hits a non-obvious decomposition - Validator finds contradictory evidence - Refusal-discipline needs to enumerate cascading blockers - Disagreement protocol in consensus-engine ## When NOT to use - Simple, linear task with obvious decomposition - Time-critical iteration (sequential analysis adds latency) ## Output format ```markdown ## Thought 1 <step 1 reasoning> ## Thought 2 <step 2 reasoning> ## Thought 3 (revises Thought 1) <revised reasoning + why prior thought was wrong> ## Hypothesis <final claim> ## Verification trace - Thought 1 → ... → Thought N → Hypothesis (each link cites evidence) ``` ## Iron rules - No invented chain links — every step cites prior step or external evidence. - Revisions explicit (which earlier step is being revised, why). - Final hypothesis only emitted after verification trace passes.
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