Cc Thinking Skills plugin for Grok Build

Community Claude Code plugin, installs in GrokPluginDevelopment

28 eval-informed mental models and critical-thinking skills for Claude Code, GitHub Copilot, Codex, Cursor, and other Agent Skills-compatible tools

How to install Cc Thinking Skills in Grok Build

grok plugin install tjboudreaux/cc-thinking-skills --trust
✓ Install-checked in Grok Buildchecked Oct 18, 2026

Review before you trust it. --trust lets this plugin's hooks, MCP servers and scripts run code on your computer. It's a community repo that neither xAI nor GrokStacks has reviewed, so read its code first.

We install this repo directly: Grok Build 1.0.62 can't install it through its own marketplace file. Then start a new Grok session, or press r in /plugins, to load it.

Command format: Grok Build's plugin guide

What we checked: on Oct 18, 2026 it installed with grok 1.0.62 and Grok found 28 skills. That's an install check only: we haven't run it in a live Grok session.

What it contains

Skills (25)

  • thinking-bounded-rationality — Use when search or investigation could run forever. Set an explicit good-enough threshold first, then stop at the first option that clears it.
  • thinking-circle-of-competence — Use when a specific claim may lack grounding. Check evidence boundary, size wrongness cost, then answer, fetch, or abstain — never confabulate.
  • thinking-cynefin — When the right response mode is unclear, classify the cause-effect domain first; decompose disorder.
  • thinking-effectuation — Under genuine uncertainty with no reliable forecast, inventory means, cap downside at affordable loss, act for commitments, and let goals emerge from controllable moves.
  • thinking-first-principles — When a constraint is treated as fixed, separate physics from convention, keep only independently supported primitives, and rebuild the simplest solution that satisfies real constraints.
  • thinking-five-whys-plus — When a fault is localized and the proximate cause is known but the systemic root is not, chain evidence-linked whys with a counterfactual stop and a countermeasure.
  • thinking-jobs-to-be-done — Deciding what to build or why adoption fails. Recover the progress users hire a solution for under a circumstance, then rank by outcome and competing workarounds.
  • thinking-kepner-tregoe — Use when a selective defect needs IS/IS-NOT difference analysis or a consequential option choice needs must/want weighting and adverse-consequence comparison.
  • thinking-lindy-effect — Use when longevity of a non-perishable option matters. Treat survival duration as a remaining-life prior, then check domain drift before favoring the proven.
  • thinking-map-territory — When a claim, doc, test, metric, or assumption conflicts with observed behavior, stop theorizing from the map and verify the live code or data; let territory overrule.
  • thinking-margin-of-safety — When provisioning, setting a limit, or committing an estimate under uncertainty, size a buffer to residual error and the cost of breach—not to the optimistic edge.
  • thinking-model-combination — When one mental model leaves a material blind spot on a multi-domain or high-stakes problem, sequence complementary models with named roles and a conflict rule.
  • thinking-model-router — When unsure which thinking skill fits, map domain and problem type, then return NONE or one primary skill by default (at most three complementary).
  • thinking-ooda — Use under time pressure when the situation is still changing and you must act before certainty — cycle Observe→Orient→Decide→Act on ~70% confidence, then re-observe.
  • thinking-opportunity-cost — Before committing scarce time, people, or money, name the best forgone use of those resources and the value delta of the chosen path versus that alternative.
  • thinking-pre-mortem — Before committing to a plan or launch, assume it already failed and reason backward through concrete causes — convert failure paths into mitigations, gates, and stop checks.
  • thinking-probabilistic — Use when forecasting, estimating, or sizing risk — anchor on base rates, give ranges, update prior→likelihood→posterior on evidence, and factor unmeasured quantities into order-of-magnitude bounds.
  • thinking-red-team — For authorized security review of code, auth, or APIs you control, model the attacker, map the attack surface, and report only findings with a reproducible exploit path and verified mitigation.
  • thinking-reversibility — Before heavy deliberation, classify the decision as cheap or costly to undo; decide two-way doors fast and stage one-way doors to preserve options.
  • thinking-scientific-method — When a symptom has several plausible causes, rank falsifiable hypotheses and run the cheapest discriminating observation first; prefer least-assumptive survivors only after evidence fit.
  • thinking-second-order — When a change has effects past the immediate fix—incentives, scale, feedback—trace consequence chains with timing and probability before committing.
  • thinking-socratic — When a request is vague, assumption-laden, or "obvious," ask the few load-bearing questions that expose hidden requirements before building or committing.
  • thinking-steel-manning — Before rejecting a proposal or reflexively agreeing, build the strongest faithful opposing case, state agreement conditions, then update or reaffirm.
  • thinking-systems — When behavior is emergent across components—fixes elsewhere break, loops/delays dominate—map boundary, stocks/flows, feedback, archetypes, then rank leverage.
  • thinking-theory-of-constraints — When throughput or latency is pipeline-limited, identify the single binding constraint and exploit, subordinate, elevate, then recheck—ignore non-constraints.

About this listing

Cc Thinking Skills is a community plugin on GitHub by tjboudreaux, written as a Claude Code plugin that Grok Build installs. We install-checked it in Grok; we haven't run it in a live session or reviewed its code. When we installed it, Grok found 25 skills. Its license is MIT. We checked commit 7b8fece345df. It's one of 409 listings in the Development category on GrokStacks.

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Cc Thinking Skills FAQ

How do I install Cc Thinking Skills in Grok Build?

Run grok plugin install tjboudreaux/cc-thinking-skills --trust. We install-checked this command in Grok Build. We install this repo directly: Grok Build 1.0.62 can't install it through its own marketplace file. Then start a new Grok session, or press r in /plugins, to load it.

Is Cc Thinking Skills an official Grok Build plugin?

No. Cc Thinking Skills is a community plugin on GitHub by tjboudreaux, not in xAI's official Grok Build marketplace. We checked that it installs and what Grok loads from it, but haven't run it in a live Grok session or reviewed its code.

What does Cc Thinking Skills include?

According to what Grok loaded in our install check, Cc Thinking Skills includes 25 skills: thinking-bounded-rationality, thinking-circle-of-competence, thinking-cynefin, thinking-effectuation, thinking-first-principles, thinking-five-whys-plus….

Details

Type
Plugin
Category
Development
Source
Community Claude Code plugin, installs in Grok
License
MIT
Author
tjboudreaux
Version
1.0.0
Keywords
agent-skills, ai-tools, anthropic, claude, claude-code, critical-thinking, decision-making, first-principles, mental-models, problem-solving, systems-thinking
Source repo
https://github.com/tjboudreaux/cc-thinking-skills
Checked commit
7b8fece345df
Checked by GrokStacks
Install-checked in Grok Build on Oct 18, 2026; not run in a live session

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<a href="https://grokstacks.com/p/cc-thinking-skills/" style="display:block;max-width:380px;box-sizing:border-box;padding:14px 16px;border:1px solid #2a2e3c;border-radius:12px;background:#0a0b0f;color:#e8eaf0;font:14px/1.45 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;text-decoration:none"><span style="display:block;font-size:16px;font-weight:700;color:#e8eaf0">Cc Thinking Skills</span><span style="display:block;margin:2px 0 8px;font-size:12px;color:#9aa0b1">Community plugin for Grok Build · 25 skills</span><span style="display:block;margin:0 0 10px;color:#c9cdd8">28 eval-informed mental models and critical-thinking skills for Claude Code, GitHub Copilot, Codex, Cursor, and other…</span><span style="font-size:12px;font-weight:600;color:#7c9cff">View on GrokStacks →</span></a>

Markdown summary

**[Cc Thinking Skills on GrokStacks](https://grokstacks.com/p/cc-thinking-skills/)**: Community plugin for Grok Build with 25 skills. Install: `grok plugin install tjboudreaux/cc-thinking-skills --trust`

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