Keyword Cluster Builder

What it does

When your agent uses it

• Building keyword lists
• Planning content calendars
• Identifying topic clusters for pillar content strategy

Example prompts

• “Use the keyword-cluster-builder skill to technique for expanding seed keywords and clustering by topic and intent”
• “/keyword-cluster-builder”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

1. 1Extract Seed Topics: Identify main themes from expanded list
2. 2Group by Semantic Similarity: Keywords with overlapping meaning
3. 3Map Intent: Assign I/C/T/N to each cluster
4. 4Identify Pillar: Highest-volume, broadest term = pillar
5. 5Map Supporting: Lower-volume terms support pillar

What it can do on your machine

Read from SKILL.md and the folder at commit 6097ad4. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Keyword Cluster Builder loads about 674 tokens when it runs. Until then it costs about 55 tokens; SKILL.md has 174 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~55

When it runs · the whole SKILL.md, loaded when a task matches

~674

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from MadAppGang/claude-code at commit 6097ad4, republished under its MIT licence (© MadAppGang). 174 words, ~674 tokens.

name

keyword-cluster-builder

description

Techniques for expanding seed keywords and clustering by topic and intent. Use when building keyword lists, planning content calendars, or identifying topic clusters for pillar content strategy.

plugin

seo

updated

2026-01-20

PILLAR: "content marketing" (highest volume)
+-- CLUSTER: "content marketing strategy" (commercial)
|   +-- content marketing plan template
|   +-- content marketing framework
|   +-- how to create content marketing strategy
+-- CLUSTER: "content marketing examples" (informational)
|   +-- B2B content marketing examples
|   +-- content marketing case studies
|   +-- content marketing success stories
+-- CLUSTER: "content marketing tools" (commercial)
    +-- best content marketing tools
    +-- content marketing software
    +-- content marketing platforms

## Keyword Cluster Report

**Seed Keyword**: {seed}
**Total Keywords**: {count}
**Clusters**: {cluster_count}

### Cluster 1: {cluster_name}
**Intent**: {intent}
**Funnel Stage**: {stage}
**Keywords**:
1. {keyword1} - {estimated_volume}
2. {keyword2} - {estimated_volume}
...

### Cluster 2: {cluster_name}
...

© MadAppGang, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in plugins/seo/skills/keyword-cluster-builder of MadAppGang/claude-code.

Open the folder on GitHubat commit 6097ad4

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in MadAppGang/claude-code, which our catalogue first saw on October 7, 2026.

• nicepkg/ai-workflowworkflows/marketing-pro-workflow/.claude/skills/keyword-cluster-builder