---
title: "Category Dominance Matrix"
description: "Map brand dominance by category clusters."
order: 4
featured: false
---

   
                                  
                                                        
        
   
# Category Dominance Matrix

## What it does

Map and analyze brand dominance across different category clusters based on keyword and description signals, computing rank-weighted share per brand in each cluster, and classifying market concentration.

## Execution Contract

```yaml
Every execution of this skill must operate under the following contract:
- **ingestion_plan**: A documented plan for pulling data.
- **max_api_calls**: 3 (default, strictly enforced).
- **cache_key**: A unique key identifying the cached API dataset.
- **dataset_timestamp**: ISO timestamp of the ingested dataset.
- **analysis_mode**: `offline_only`
```

## Data Access Policy

- **API Target**: Consume data from the FullMention API at `GET /v2/runs/{runId}`.
- **Controlled Ingestion**: Perform exactly one controlled ingestion pull from the FullMention API. Paginated batch fetching is preferred.
- **API Decoupling**: Do NOT treat the FullMention API as a persistent database or state-store; it is a read-only snapshot provider.
- **24-Hour TTL**: FullMention v2 deletes run data after 24 hours, meaning offline persistence/database caching is a strict requirement for historical tracking.
- **Local Persistence**: Save all analytical outputs locally in the current workspace directory.
  - Raw structured JSON must be saved to `[skill_name].json` (e.g. `category-dominance-matrix.json`).
  - A premium, beautifully styled markdown report must be saved to `[skill_name].md` (e.g. `category-dominance-matrix.md`).
- **Caching**: Reuse the same stored dataset across iterative prompts. Do not repeat identical API calls.
- **Refresh Window**: Make additional API calls only if the user explicitly requests a refresh window or a missing page fetch.
- **Rate Limits & Backoff**: Respect API rate limits and backoff policies. Never run open-ended call loops.
- **Allowed Sources**:
  - Local working dataset produced from one ingestion pull of FullMention API data.
  - Optional user-provided local file/DB snapshot (read-only).
  - No repeated API fetching during analysis.

## Required Input Fields & Parameters

The input dataset from the API/file must map to these fields:
- `keyword` (string, searched keyword)
- `categorySuggestions[]` (array of strings, suggested categories)
- `brandRankings[].name` (string, brand name)
- `brandRankings[].position` (integer, brand rank position)

## Analytical Method

Follow these step-by-step logic rules during analysis:
1. **Category Clustering**: Group results directly using the categories listed in the root-level `categorySuggestions[]` array of strings (e.g. mapping keywords under suggested categories).
2. **Rank-Weighted Share Computation**: For each category cluster, calculate the rank-weighted Share of Voice (SOV) for each brand using the reciprocal position formula in `brandRankings[]`:
   $$\text{weightedScore} = \sum \frac{1}{\text{position}}$$
   Convert each brand's score to a percentage share of the total weighted score within that specific category cluster.
3. **Dominance Classification**: For each cluster, classify the overall dominance of the leading brands:
   - `strong`: A single leading brand holds a dominant share ($> 40\%$ SOV) and a significant lead over the runner-up.
   - `moderate`: The top brands have closely competing, moderate shares (e.g., multiple brands with $20\% - 30\%$ SOV).
   - `fragmented`: No brand holds a meaningful share, with citations spread thinly across many brands.

## Expected Output

The skill must generate two outputs in the local workspace:

1. **`category-dominance-matrix.json`**:
   Contains the raw structured analytical output, including the execution contract metadata, category matrix data with top brands and calculated shares, dominance classifications, confidence metrics, and the evidence map.

2. **`category-dominance-matrix.md`**:
   A premium, beautiful human-readable report. This report must contain:
   - **Category Dominance Matrix**: Formatted grid table displaying categories as rows, with columns for `Top Brand`, `SOV Share %`, `Runner Up`, `Runner Up Share %`, and `Dominance Class` (Strong | Moderate | Fragmented).
   - **Key Strategic Opportunities**: Analysis of fragmented or weakly defended clusters where the target brand can easily gain dominance.
   - **Confidence & Limitations**:
     - A confidence score from 0-100.
     - **Confidence Rationale**: Explanation of how the confidence score was derived.
     - **Limitations**: A list of data limitations or gaps.
   - **Evidence Map**: An array of objects `evidence_map[]` with:
     - `finding_id`
     - `metric_name`
     - `source_field_paths[]`
     - `sample_result_ids[]`

## Guardrails & Constraints

- **Low Confidence Fallback**: If semantic clustering confidence is low or keywords are highly diverse, fallback to fewer, broader clusters to ensure statistical accuracy.
- **No External Taxonomy Lookups**: Do not use external taxonomy lookups or semantic categorization services unless explicitly supplied by the user as a local file or parameter.
- **No Web Lookups**: Do not perform external web lookups or enrichment of brand data.
- **No Hallucination**: Do not invent brands, rankings, keywords, or timestamps that are not present in the ingested dataset.

## Copy-ready Skill Prompt

Use this as a full copy/paste prompt in your AI tool:

```text
Skill: Category Dominance Matrix
Goal: Map brand dominance by category clusters.

Data Access Policy:
- **API Target**: Consume data from the FullMention API at `GET /v2/runs/{runId}`.
- **Controlled Ingestion**: Perform exactly one controlled ingestion pull from the FullMention API. Paginated batch fetching is preferred.
- **API Decoupling**: Do NOT treat the FullMention API as a persistent database or state-store; it is a read-only snapshot provider.
- **24-Hour TTL**: FullMention v2 deletes run data after 24 hours, meaning offline persistence/database caching is a strict requirement for historical tracking.
- **Local Persistence**: Save all analytical outputs locally in the current workspace directory.
  - Raw structured JSON must be saved to `[skill_name].json` (e.g. `category-dominance-matrix.json`).
  - A premium, beautifully styled markdown report must be saved to `[skill_name].md` (e.g. `category-dominance-matrix.md`).
- **Caching**: Reuse the same stored dataset across iterative prompts. Do not repeat identical API calls.
- **Refresh Window**: Make additional API calls only if the user explicitly requests a refresh window or a missing page fetch.
- **Rate Limits & Backoff**: Respect API rate limits and backoff policies. Never run open-ended call loops.
- **Allowed Sources**:
  - Local working dataset produced from one ingestion pull of FullMention API data.
  - Optional user-provided local file/DB snapshot (read-only).
  - No repeated API fetching during analysis.

Input Fields & Params:
The input dataset from the API/file must map to these fields:
- `keyword` (string, searched keyword)
- `categorySuggestions[]` (array of strings, suggested categories)
- `brandRankings[].name` (string, brand name)
- `brandRankings[].position` (integer, brand rank position)

Method:
Follow these step-by-step logic rules during analysis:
1. **Category Clustering**: Group results directly using the categories listed in the root-level `categorySuggestions[]` array of strings (e.g. mapping keywords under suggested categories).
2. **Rank-Weighted Share Computation**: For each category cluster, calculate the rank-weighted Share of Voice (SOV) for each brand using the reciprocal position formula in `brandRankings[]`:
   $$\text{weightedScore} = \sum \frac{1}{\text{position}}$$
   Convert each brand's score to a percentage share of the total weighted score within that specific category cluster.
3. **Dominance Classification**: For each cluster, classify the overall dominance of the leading brands:
   - `strong`: A single leading brand holds a dominant share ($> 40\%$ SOV) and a significant lead over the runner-up.
   - `moderate`: The top brands have closely competing, moderate shares (e.g., multiple brands with $20\% - 30\%$ SOV).
   - `fragmented`: No brand holds a meaningful share, with citations spread thinly across many brands.

Expected Output:
The skill must generate two outputs in the local workspace:

1. **`category-dominance-matrix.json`**:
   Contains the raw structured analytical output, including the execution contract metadata, category matrix data with top brands and calculated shares, dominance classifications, confidence metrics, and the evidence map.

2. **`category-dominance-matrix.md`**:
   A premium, beautiful human-readable report. This report must contain:
   - **Category Dominance Matrix**: Formatted grid table displaying categories as rows, with columns for `Top Brand`, `SOV Share %`, `Runner Up`, `Runner Up Share %`, and `Dominance Class` (Strong | Moderate | Fragmented).
   - **Key Strategic Opportunities**: Analysis of fragmented or weakly defended clusters where the target brand can easily gain dominance.
   - **Confidence & Limitations**:
     - A confidence score from 0-100.
     - **Confidence Rationale**: Explanation of how the confidence score was derived.
     - **Limitations**: A list of data limitations or gaps.
   - **Evidence Map**: An array of objects `evidence_map[]` with:
     - `finding_id`
     - `metric_name`
     - `source_field_paths[]`
     - `sample_result_ids[]`

Guardrails:
- **Low Confidence Fallback**: If semantic clustering confidence is low or keywords are highly diverse, fallback to fewer, broader clusters to ensure statistical accuracy.
- **No External Taxonomy Lookups**: Do not use external taxonomy lookups or semantic categorization services unless explicitly supplied by the user as a local file or parameter.
- **No Web Lookups**: Do not perform external web lookups or enrichment of brand data.
- **No Hallucination**: Do not invent brands, rankings, keywords, or timestamps that are not present in the ingested dataset.
```