Sequential Thinking ToolsCAUTION
🧠 An adaptation of the MCP Sequential Thinking Server to guide tool usage. This server provides recommendations for which MCP tools would be most effective at each stage.
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
[](https://github.com/spences10/mcp-sequentialthinking-tools/actions/workflows/ci.yaml) [](https://viteplus.dev) [](https://vitest.dev)
A lightweight MCP server for recording sequential reasoning steps. It is a scratchpad with history, branching, revision metadata, and optional validation for model-authored tool plans.
It does not discover your other MCP tools and it does not choose tools for the model. If you pass available_tools and recommended_tools, the server validates that the recommended names exist and stores the step.
Why use it?
Use this when a task benefits from explicit, inspectable reasoning:
- breaking a messy problem into steps;
- revising or branching a plan;
- keeping a small reasoning history by session;
- validating tool-plan names against a supplied tool list;
- clearing or inspecting reasoning history during a long agent run.
Do not use it for trivial requests. It adds overhead.
Tools
sequentialthinking_tools
Records one thought.
Required parameters:
thought— current reasoning stepthought_number— current step numbertotal_thoughts— current estimate; automatically raised if lower
than thought_number
next_thought_needed— whether another thought is needed
Optional parameters:
session_id— history bucket; defaults todefaultis_revision,revises_thoughtbranch_from_thought,branch_idneeds_more_thoughtsavailable_tools— array of tool names or{ name, description }
objects
- `recommen
b7fa7203d21cOBSERVED · 2026-09-29Connect
Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control.
claude mcp add mcp-sequentialthinking-tools -- npx -y [email protected]
{
"mcpServers": {
"mcp-sequentialthinking-tools": {
"command": "npx",
"args": [
"-y",
"[email protected]"
]
}
}
}Exposed tools (5)
4 read · 0 write · 1 destructive. Blast radius: 1 tool can delete or overwrite — an agent that can be talked into calling a tool can be talked into calling this one.
| Tool | Risk | Description |
|---|---|---|
clear_thinking_history | destructive | Clear recorded sequential-thinking history for one session or all sessions. |
get_thinking_history | read | Return recorded thoughts for a session. Use this to inspect or resume prior reasoning. |
read | read | show the secret |
sequential-thinking-guidance | read | Use sequentialthinking_tools as a lightweight scratchpad without pretending it performs reasoning for you. |
sequentialthinking_tools | read | Record one step of sequential reasoning. Optionally include available_tools and recommended_tools; recommendations are validated, not generated, by this server. |
Trust audit
CAUTIONgrade B · trust 89/100 Install with care. The audit found things worth knowing before you trust its output.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | WARN |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | WARN |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- declared (1 observation(s))
- Network
- declared (2 observation(s))
- Shell
- none-observed
- Dependencies
- not all pinned
- Secrets in source
- none-found
Findings (6)
name: 'secret-exfiltration',
/\b(reveal|print|dump|exfiltrate|leak|show)\s+(the\s+)?(secret|secrets|token|tokens|api\s*key|password|credentials?)\b/i,
clear_thinking_history
pattern: 'secret-exfiltration',
pattern: 'secret-exfiltration',
@tmcp/adapter-valibot, @tmcp/transport-stdio, tmcp, valibot, @changesets/cli, typescript
Gates applied: no_behavioural_pass.
b7fa7203d21cfull audit observations/trust-audit/mcp-server/spences10__sequential-thinking-tools-1.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-09-29 | b7fa7203d21c | CAUTION | B | 89 | first audit |
Questions
What is the Sequential Thinking Tools MCP server?
🧠 An adaptation of the MCP Sequential Thinking Server to guide tool usage. This server provides recommendations for which MCP tools would be most effective at each stage.
What tools does Sequential Thinking Tools expose?
5 in total: 4 read-only, 0 that write, and 1 that can delete or overwrite (clear_thinking_history). Every one is listed on this page with its risk.
Is Sequential Thinking Tools safe to connect to an agent?
With care. The audit graded it B (89/100) and found 6 things worth knowing before you trust this server, listed below with the exact line each was found on. Separately from the audit: 1 of its tools can destroy data, so scope the token you give it to what you actually need.
What credentials does Sequential Thinking Tools need?
No credential environment variables were found in its source, so it appears to need none.
How current is this page?
The grade is for one exact copy of the source (b7fa7203d21c), read on 2026-09-29. The repository is watched and re-audited when it changes.