Code Design Rationale Investigator
cursor/plugins
Digs into why code is shaped the way it is by checking git history, pull requests and connected tools in parallel, then reporting a cited read on the tradeoffs.
Analyzes idea-scoring output to identify the weakest dimensions, root causes of low scores, and probable failure modes if the idea were pursued as-is.
Install Weakness Detection
$ npx skills add MaxKmet/idea-validation-agents --skill weakness-detection -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install MaxKmet/idea-validation-agents weakness-detection --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/MaxKmet/idea-validation-agents.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/weakness-detection .claude/skills/weakness-detection && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "weakness-detection" agent skill from https://github.com/MaxKmet/idea-validation-agents/tree/main/skills/weakness-detection into .claude/skills/weakness-detection/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "weakness-detection", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/MaxKmet/idea-validation-agents/tree/main/skills/weakness-detectionType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add MaxKmet/idea-validation-agents --skill weakness-detection -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install MaxKmet/idea-validation-agents weakness-detection --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/MaxKmet/idea-validation-agents.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/weakness-detection .agents/skills/weakness-detection && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "weakness-detection" agent skill from https://github.com/MaxKmet/idea-validation-agents/tree/main/skills/weakness-detection into .agents/skills/weakness-detection/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "weakness-detection", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add MaxKmet/idea-validation-agents --skill weakness-detection -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install MaxKmet/idea-validation-agents weakness-detection --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/MaxKmet/idea-validation-agents.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/weakness-detection .cursor/skills/weakness-detection && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "weakness-detection" agent skill from https://github.com/MaxKmet/idea-validation-agents/tree/main/skills/weakness-detection into .cursor/skills/weakness-detection/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "weakness-detection", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/MaxKmet/idea-validation-agents.git --path skills/weakness-detection--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add MaxKmet/idea-validation-agents --skill weakness-detection -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install MaxKmet/idea-validation-agents weakness-detection --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/MaxKmet/idea-validation-agents.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/weakness-detection .gemini/skills/weakness-detection && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "weakness-detection" agent skill from https://github.com/MaxKmet/idea-validation-agents/tree/main/skills/weakness-detection into .gemini/skills/weakness-detection/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "weakness-detection", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install MaxKmet/idea-validation-agents weakness-detectionInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add MaxKmet/idea-validation-agents --skill weakness-detection -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/MaxKmet/idea-validation-agents.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/weakness-detection .github/skills/weakness-detection && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "weakness-detection" agent skill from https://github.com/MaxKmet/idea-validation-agents/tree/main/skills/weakness-detection into .github/skills/weakness-detection/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "weakness-detection", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add MaxKmet/idea-validation-agents --skill weakness-detection -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install MaxKmet/idea-validation-agents weakness-detection --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/MaxKmet/idea-validation-agents.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/weakness-detection .opencode/skills/weakness-detection && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "weakness-detection" agent skill from https://github.com/MaxKmet/idea-validation-agents/tree/main/skills/weakness-detection into .opencode/skills/weakness-detection/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "weakness-detection", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
weakness-detection- GitHub stars
- 474
- Token cost
- ~508 tokens
- SKILL.md length
- 150 words
- Files
- 1
- Skills in repo
- 15
- Repo updated
- First seen
- Licence
- MIT
At a glance
Analyzes idea-scoring output to identify the weakest dimensions, root causes of low scores, and probable failure modes if the idea were pursued as-is.
- Works in 4 steps: Load scores.json, identify dimensions… → For each weak dimension, read the source… → Classify the root cause (structural /… → …
- Tasks that involve Root cause analysis
- SKILL.md covers Purpose, Input, Weakness Classification and Process, plus 2 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Weakness Detection is an agent skill from MaxKmet/idea-validation-agents. Analyzes idea-scoring output to identify the weakest dimensions, root causes of low scores, and probable failure modes if the idea were pursued as-is.
Its SKILL.md is about 510 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Development, covering Root cause analysis. The repository describes itself as: AI agents that act as your personal venture analyst - from startup idea brainstorming to full validation and go-to-market strategy. Built for developers who'd rather validate in… The licence is MIT.
When your agent uses it
- Tasks that involve Root cause analysis
Example prompts
- “Use the weakness-detection skill to analyz idea-scoring output to identify the weakest dimensions, root causes of low scores, and probable failure…”
- “/weakness-detection”
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Load scores.json, identify dimensions scoring below threshold.
- For each weak dimension, read the source file to understand why.
- Classify the root cause (structural / situational / knowledge gap / addressable).
- Describe the failure mode if the idea proceeded without fixing this weakness.
What it can do on your machine
Read from SKILL.md and the folder at commit 3a4c800. 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 json).
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
Weakness Detection loads about 508 tokens when it runs. Until then it costs about 42 tokens; SKILL.md has 150 words of instructions outside code blocks.
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
Auto-check passed
The automated check found no risky patterns in SKILL.md.
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 MaxKmet/idea-validation-agents at commit 3a4c800, republished under its MIT licence (© MaxKmet). 150 words, ~508 tokens.
Download SKILL.mdSave it as
.claude/skills/weakness-detection/SKILL.md (or your agent's skills folder).- name
- weakness-detection
- description
- Analyzes idea-scoring output to identify the weakest dimensions, root causes of low scores, and probable failure modes if the idea were pursued as-is.
<!-- version: 0.1.0 | outputs: memory/ideas/<slug>/weaknesses.json -->Skill: weakness-detection
Purpose
Before triggering the pivot engine, understand WHY dimensions are weak. A low distribution score might mean "no viral loop" (fixable) or "fundamentally wrong category for organic growth" (structural). Surface the root cause, not just the symptom.
Input
- Idea slug
memory/ideas/<slug>/scores.json(required)- All available dimension files in
memory/ideas/<slug>/
Weakness Classification
| Root Cause Type | Description | Fix Type |
|---|---|---|
| Structural | Inherent to the idea, can't be pivoted away | Drop or major pivot |
| Situational | Weak due to user's current constraints | Fixable (more time, budget) |
| Knowledge gap | Weak because data is missing | Run more research |
| Addressable | Weak but has a clear fix | Targeted pivot |
Process
<!-- TODO: Add failure mode library by app category --><!-- TODO: Define threshold for "weak" (e.g., dimension score < 40) -->- Load scores.json, identify dimensions scoring below threshold.
- For each weak dimension, read the source file to understand why.
- Classify the root cause (structural / situational / knowledge gap / addressable).
- Describe the failure mode if the idea proceeded without fixing this weakness.
Output
Write to memory/ideas/<slug>/weaknesses.json:
{
"weak_dimensions": [
{
"dimension": "",
"score": 0,
"root_cause_type": "structural | situational | knowledge-gap | addressable",
"root_cause_description": "",
"failure_mode": ""
}
],
"critical_weaknesses": [],
"addressable_weaknesses": [],
"overall_weakness_severity": "fatal | major | minor"
}Notes
<!-- TODO: Define "fatal" vs "major" vs "minor" by combination of weak dimensions -->© MaxKmet, 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 skills/weakness-detection of MaxKmet/idea-validation-agents.
Open the folder on GitHubat commit 3a4c800
Compare with similar skills
Weakness Detection next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Weakness Detection this skillMaxKmet/idea-validation-agents | 474 | — | ~508 | Automated safety check: Pass | MIT | |
| Code Design Rationale Investigatorcursor/plugins | 10k | 9 repos | ~2.6k | Automated safety check: Pass | None | |
| OpenLogi macOS Permissions TriageAprilNEA/OpenLogi | 23k | — | ~2.5k | Automated safety check: Notes | Apache-2.0 | |
| Bug Finder for daisyUIsaadeghi/daisyui | 43k | — | ~2.3k | Automated safety check: Pass | MIT | |
| Root Cause Debugginggarrytan/gstack | 136k | — | ~1.4k | Automated safety check: Pass | MIT | |
| Review PRapache/shardingsphere | 21k | — | ~6.4k | Automated safety check: Pass | Apache-2.0 |
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Bug Finder for daisyUI
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Investigates suspected bugs in the daisyUI monorepo through read-only analysis, then writes a decision-ready fix plan in tmp/bugs without changing any product code.
Root Cause Debugging
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Investigates bugs, errors and stack traces in phases and requires a root-cause hypothesis to be confirmed before any fix is written.
Review PR
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Review Apache ShardingSphere or user-authorized downstream pull requests and PR discussions from public or authorized repository evidence.
Graph-Based Bug Tracing
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Traces a bug through a code knowledge graph, following callers, callees and execution flow before opening source files, within a small token budget.
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Related
Categories
Questions about Weakness Detection
What does Weakness Detection do?
Analyzes idea-scoring output to identify the weakest dimensions, root causes of low scores, and probable failure modes if the idea were pursued as-is. Weakness Detection is an agent skill from MaxKmet/idea-validation-agents. Analyzes idea-scoring output to identify the weakest dimensions, root causes of low scores, and probable failure modes if the idea were pursued as-is.
When should I use Weakness Detection?
Weakness Detection fits situations like: tasks that involve Root cause analysis.
How do I install Weakness Detection in Claude Code?
Run `npx skills add MaxKmet/idea-validation-agents --skill weakness-detection -a claude-code`. Or copy the skill folder (skills/weakness-detection in MaxKmet/idea-validation-agents) into .claude/skills/weakness-detection in your project. Claude Code loads it when a task matches its description.
How do I install Weakness Detection in Codex?
Run `npx skills add MaxKmet/idea-validation-agents --skill weakness-detection -a codex`. Or copy the skill folder (skills/weakness-detection in MaxKmet/idea-validation-agents) into .agents/skills/weakness-detection in your project. Codex loads it when a task matches its description.
Can I use Weakness Detection in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add MaxKmet/idea-validation-agents --skill weakness-detection -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/weakness-detection, .gemini/skills/weakness-detection, .github/skills/weakness-detection and .opencode/skills/weakness-detection in your project.
What does Weakness Detection need to run?
SKILL.md names no scripts, command-line tools or credentials: Weakness Detection is instructions for the agent only.
Does Weakness Detection access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Weakness Detection safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Weakness Detection use?
Weakness Detection is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Weakness Detection use?
About 508 tokens (SKILL.md is roughly 2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Weakness Detection?
Skills that share tags, products or a category with Weakness Detection: Code Design Rationale Investigator (cursor/plugins, 10k stars), OpenLogi macOS Permissions Triage (AprilNEA/OpenLogi, 23k stars), Bug Finder for daisyUI (saadeghi/daisyui, 43k stars) and Root Cause Debugging (garrytan/gstack, 136k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Weakness Detection?
MaxKmet (a GitHub user) maintains it in MaxKmet/idea-validation-agents, which has 474 GitHub stars. The repository holds 15 skills in this directory. The repository was last updated on June 16, 2026.
Source: MaxKmet/idea-validation-agents on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.