clear_thinking_history
Clear recorded sequential-thinking history for one session or all sessions.
LABSCO SUMMARY
It makes a long chain of reasoning something you can go back and read.
The session ID is what separates this from thinking out loud: the history outlives the turn, so a plan begun yesterday is resumed rather than re-derived. Revisions and branches are recorded instead of overwriting what came before, which means the abandoned path is still there when it turns out to have been the right one.
What it is
A local server with three tools that record sequential reasoning: write one step, read the history back, and clear it. Steps can revise an earlier one or branch from it, and any tool recommendations attached to a step are validated against what you said was available rather than invented by the server.
What you get
- Record one reasoning step at a time, with its number, the total planned, and whether another is needed (sequentialthinking_tools).
- Revise or branch: is_revision and revises_thought correct an earlier step, branch_from_thought and branch_id follow an alternative line without discarding the first.
- Attach available_tools and recommended_tools to a step and have the recommendation validated against the available list.
- Read a session's thoughts back, by branch or limited in number, to inspect or resume it (get_thinking_history).
- Clear one session, or all of them (clear_thinking_history).
Requirements
Node.js on the machine; no account and no key. MAX_HISTORY_SIZE bounds how much is retained. MIT licensed.
Setup effort
One command — npx -y mcp-sequentialthinking-tools
USE CASES
01
Picking up an analysis you started yesterday
Read back where the reasoning stopped and continue from that step.
02
Backing out of a wrong assumption without starting over
Mark the step that was wrong, or branch from before it, and keep both lines.
03
Reviewing how an agent reached its conclusion
Read the steps in order rather than inferring the path from the answer.
04
Starting a clean problem in a shared session
Clear the recorded history so an unrelated problem does not inherit it.
3 tools
Counted once with only startup setup. Other versions, modes or optional credentials may expose a different list.
get_thinking_history
Return recorded thoughts for a session. Use this to inspect or resume prior reasoning.
sequentialthinking_tools
Record one step of sequential reasoning. Optionally include available_tools and recommended_tools; recommendations are validated, not generated, by this server.
BEFORE YOU INSTALL
What to know first
Tools you get
3 tools when we connected.
Requires
- npx on PATH
- MAX_HISTORY_SIZE in your environment
CONTEXT COST
Light Standing cost
Rated by the size of the 3 tool definitions that ride along on every turn, not by how many there are
INSTALLATION
Connect your client
Add the block to your client, or run the command directly.
Server setup
Configuration file
JSON
{
"mcpServers": {
"mcp-sequentialthinking-tools": {
"command": "npx",
"args": [
"-y",
"mcp-sequentialthinking-tools"
],
"env": {
"MAX_HISTORY_SIZE": "1000"
}
}
}
}npx
TERMINAL
npx -y mcp-sequentialthinking-tools
