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Sequential Thinking MCP (--deepthink) · modu-ai | DecimalAI

agent toolingby modu-ai

Sequential Thinking MCP (--deepthink)

modu-ai/moai-workflow-thinking

Source modu-ai/moai-adk ↗License Apache-2.0

Sequential Thinking MCP for structured step-by-step analysis via --deepthink flag. Separate from UltraThink which is Claude's native extended reasoning mode.

SkillScore68Maintained

Automatic

AI Engineer pack

Last verified 8/15/2026

What it changes

Passed 11 of 16 test cases with the skill, and 6 of 16 without it.

Without skill36%

With skill68%

Checks it passed that the model alone missed

Sets isRevision to true
Sets revisesThought to 2
Sets branchFromThought to 3

and 6 more in the full report

7 fixed8 passed either way7 still failing0 broke

Pass-rate lift: +32 pp
Tokens: +34%
Agent turns: 0%
Response time: -19%

Model gemini-3.6-flashMeasured 8/15/2026v115 of 22 cases passed with skill · 16 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/modu-ai-moai-workflow-thinking/SKILL.md https://app.decimal.ai/s/modu-ai-moai-workflow-thinking/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add modu-ai-moai-workflow-thinking, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/modu-ai-moai-workflow-thinking/ and pins it in .decimal/skills.lock

decimalai skills add modu-ai-moai-workflow-thinking

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/modu-ai-moai-workflow-thinking/SKILL.md https://app.decimal.ai/s/modu-ai-moai-workflow-thinking/SKILL.md

Raw file: /s/modu-ai-moai-workflow-thinking/SKILL.md ↗ · machine-readable summary at /s/modu-ai-moai-workflow-thinking.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 7 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 7

Prompt

In a --deepthink session originally estimated for 4 steps, we realized at step 4 that rate-limiting edge cases require extra analysis. Which parameter signals this extension?

What was checked, without and with the skill
Checked	Without skill	With skill
Sets needsMoreThoughts to true	Missed	Passed

case-14 · gemini-3.6-flash · 8/15/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md127 linessingle file

Sequential Thinking MCP (--deepthink)

Structured step-by-step reasoning via mcp__sequential-thinking__sequentialthinking MCP tool.

CRITICAL: Three Distinct Reasoning Modes

MoAI has THREE independent deep analysis modes. They are NOT the same thing:

Mode	Trigger	Mechanism	MCP Tool?	GLM Compatible?	Model
`--deepthink`	Explicit `--deepthink` flag	Sequential Thinking MCP tool	YES — `mcp__sequential-thinking__sequentialthinking`	NO — generates server_tool_use content type	Any
`ultrathink`	Keyword or auto-detection	Claude native extended reasoning (high effort)	NO — native to Claude	YES — no special content type	Any
Adaptive Thinking	Automatic on Opus 4.7	Opus 4.7's only supported thinking mode	NO — built-in	YES	Opus 4.7 only

Rules:

--deepthink → ALWAYS invoke Sequential Thinking MCP. NEVER use for native reasoning.
ultrathink → ALWAYS use Claude's native extended reasoning. NEVER invoke Sequential Thinking MCP.
They can coexist: ultrathink --deepthink activates BOTH modes independently.
Adaptive Thinking → Opus 4.7's built-in reasoning. Let the model adapt depth automatically based on task complexity.
On Opus 4.7: do not hardcode a fixed reasoning budget. Adaptive Thinking overrides fixed-budget instructions.

Activation Triggers (--deepthink only)

Use Sequential Thinking MCP when --deepthink flag is explicitly present:

Breaking down complex problems into steps
Planning and design with room for revision
Architecture decisions affect 3+ files
Technology selection between multiple options
Performance vs maintainability trade-offs
Breaking changes under consideration
Multiple approaches exist to solve the same problem
Repetitive errors occur

Tool Parameters

Required Parameters:

thought (string): Current thinking step content
nextThoughtNeeded (boolean): Whether another step is needed
thoughtNumber (integer): Current thought number (starts from 1)

Track record

Benchmark

11 / 16

test cases passed, vs 6 / 16 without

Adoption

Users: 1
Times used: 13

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

modu-ai / moai-adk

.moai/archive/skills/v3.0/moai-workflow-thinking/SKILL.md

View on GitHub ↗

License Apache-2.0Imported 8/3/2026Version v1

Other skills for the same job

Published skills whose descriptions closely match this one, with their headline benchmark lift.

microck/sequential-thinkingUse when complex problems require systematic step-by-step reasoning with ability to revise thoughts, branch into alternative approaches, or dynamically adjust scope. Ideal for multi-stage analysis, design planning, problem decomposition, or tasks with initially unclear scope.Close match

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

Sequential Thinking MCP (--deepthink)

CRITICAL: Three Distinct Reasoning Modes

Activation Triggers (--deepthink only)

Tool Parameters

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

Related skills