sequential-thinkinglisted

# Sequential Thinking Replaces the `sequential_thinking` MCP server. Same intent — externalize a numbered chain of thoughts with revision and branch semantics — implemented as visible Markdown so any reasoning-capable model (Claude 4.x extended thinking, Gemini 3.x thinking, GPT-5.x reasoning) can follow it without an extra tool round-trip. ## When to use - The problem has 3+ interacting constraints or sub-decisions. - An earlier conclusion may need revising as new evidence arrives. - More than one viable approach is on the table and they should be compared, not silently chosen. - The user explicitly asked for stepwise/structured reasoning. If none of these hold, answer directly — protocol overhead on a simple question wastes tokens and looks performative. ## Why a visible protocol (not just internal CoT) Modern reasoning models already think internally. They need a shared on-the-page format so: - the user can audit which step a wrong conclusion came from, - revisions can point at the specific thought they replace, - branches can be compared side by side instead of overwriting each other, - a downstream agent or reviewer can parse the structure. Do not try to suppress, expose, or paraphrase the model's hidden reasoning trace. Use this protocol in addition to it — write the durable, reviewable summary as Thought blocks; let the internal trace stay internal. ## Protocol Open with a one-line plan, then emit numbered Thought blocks. Use these exact markers so output is