competitive-feature-matrix-builder

competitive-feature-matrix-builder is a skill for Claude Code, Codex from KirKruglov/claude-skills-kit. It costs 83 tokens per session (1,838 once invoked), scanned A, original, MIT.

A procedure that compares competitor notes and builds a feature matrix—a table showing which products have which features—then identifies gaps and recommendations. It reads Markdown or plain-text files from a folder.

In plain words
What is it for?
Use it for competitive analysis, roadmap discussions, feature prioritisation, and comparison with your own product when its notes are provided.
Why use it?
It makes differences between competitors easier to see than separate notes or documents.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it for competitive analysis, roadmap discussions, feature prioritisation, and comparison with your own product when its notes are provided.

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Install with agentmods
npx agentmods add skills/kirkruglov/claude-skills-kit/competitive-feature-matrix-builder
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add KirKruglov/claude-skills-kit --skill competitive-feature-matrix-builder
Clone the repo
git clone --depth 1 https://github.com/KirKruglov/claude-skills-kit

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for competitive-feature-matrix-builder

README.md
[![agentmods](https://agentmods.dev/badge/skills/kirkruglov/claude-skills-kit/competitive-feature-matrix-builder/github.svg)](https://agentmods.dev/skills/kirkruglov/claude-skills-kit/competitive-feature-matrix-builder)
Your own site
<a href="https://agentmods.dev/skills/kirkruglov/claude-skills-kit/competitive-feature-matrix-builder"><img src="https://agentmods.dev/badge/skills/kirkruglov/claude-skills-kit/competitive-feature-matrix-builder/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for competitive-feature-matrix-builder

Your own site · 80×15
<a href="https://agentmods.dev/skills/kirkruglov/claude-skills-kit/competitive-feature-matrix-builder"><img src="https://agentmods.dev/badge/skills/kirkruglov/claude-skills-kit/competitive-feature-matrix-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 83 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,838 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00083 $0.01838
Opus 5 $0.00042 $0.00919
Sonnet 5 $0.00017 $0.00368
Haiku 4.5 $0.00008 $0.00184

Measured 12d ago against content hash c2427bfc1ed8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

competitive-feature-matrix-builder scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/market-and-competitive-intelligence/competitive-feature-matrix-builder/SKILL.md · 171 lines

How it starts

The opening of the file, as written. The whole thing — 171 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Competitive Feature Matrix Builder

This skill reads a folder of competitor notes (md or txt files) and produces a comparative feature matrix with a gap analysis and recommendations. No web access or API required — fully file-based, designed for Cowork.

Input:

  • Folder path containing competitor notes (one file per competitor recommended; md or txt format)
  • Optional: a file named your-product.md or own-product.md for self-comparison

Output:

  • Markdown response with three sections: Feature Matrix (table), Gap Analysis, and Recommendations

Language Detection

Detect the user's language from their message:

  • If Russian (or contains Cyrillic): respond in Russian
  • If English (or other Latin-script language): respond in English
  • If ambiguous: respond in the language of the trigger phrase used

Instructions

Step 1: Validate Input

  1. Check that the user provided a folder path.

    • If no path given: stop and respond: "Provide the path to a folder containing competitor notes in md or txt format."
  2. Scan the folder for md and txt files.

    • If folder is empty or does not exist: stop and respond: "No files found at the provided path. Provide a folder path containing competitor notes in md or txt format."
    • Report the number of files found: "Found N files: [list filenames]."
  3. Check if any file is named your-product.md or own-product.md.

    • If found: include as "Your Product" column in the matrix.
    • If not found: proceed without self-comparison column; add a closing note: "Add a file named your-product.md to enable self-comparison and gap analysis."

Step 2: Extract Competitor Names and Features

  1. For each file (excluding your-product.md/own-product.md if present):
    • Competitor name: Use the first-level heading (# Name) if present; otherwise use the filename without extension (e.g., salesforce-notes.md → "Salesforce").
    • Feature extraction: Scan the file for product features, capabilities, and attributes using these signals:
      • Explicit feature lists (bullet points, numbered lists, tables)
      • Sentences with action verbs: "supports", "offers", "includes", "has", "provides", "enables"
      • Comparison language: "unlike X, they have…", "also includes…", "unique to them…"
      • Section headings describing product areas (e.g., "Integrations", "Analytics", "Pricing")

Read the full file on GitHub · 171 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 171 lines · 83 tokens per session scan A c2427bfc1ed8

Subscribe to this mod's changes

competitive-feature-matrix-builder is a skill published in the GitHub repository KirKruglov/claude-skills-kit (18 stars, last pushed 1mo ago), licensed MIT. It adds 83 tokens to every session and 1,838 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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