Monte Carlo Analyze Root Cause
sickn33/agentic-awesome-skills
Curated upstream guidance for Monte Carlo Analyze Root Cause; use when the workflow matches the user goal.
A skill your agent uses when a framed and root-caused problem needs its assumptions made explicit before design or planning begins — explicit Assumptions, Unknowns, and a Validation plan.
Apache-2.0Auto-check passed
Install 023 Assumption Analysis
$ npx skills add jabrena/plinth --skill 023-assumption-analysis -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install jabrena/plinth 023-assumption-analysis --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/jabrena/plinth.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/023-assumption-analysis .claude/skills/023-assumption-analysis && 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 "023-assumption-analysis" agent skill from https://github.com/jabrena/plinth/tree/main/skills/023-assumption-analysis into .claude/skills/023-assumption-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "023-assumption-analysis", 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/jabrena/plinth/tree/main/skills/023-assumption-analysisType 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 jabrena/plinth --skill 023-assumption-analysis -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install jabrena/plinth 023-assumption-analysis --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jabrena/plinth.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/023-assumption-analysis .agents/skills/023-assumption-analysis && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "023-assumption-analysis" agent skill from https://github.com/jabrena/plinth/tree/main/skills/023-assumption-analysis into .agents/skills/023-assumption-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "023-assumption-analysis", 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 jabrena/plinth --skill 023-assumption-analysis -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install jabrena/plinth 023-assumption-analysis --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jabrena/plinth.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/023-assumption-analysis .cursor/skills/023-assumption-analysis && 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 "023-assumption-analysis" agent skill from https://github.com/jabrena/plinth/tree/main/skills/023-assumption-analysis into .cursor/skills/023-assumption-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "023-assumption-analysis", 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/jabrena/plinth.git --path skills/023-assumption-analysis--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 jabrena/plinth --skill 023-assumption-analysis -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install jabrena/plinth 023-assumption-analysis --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jabrena/plinth.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/023-assumption-analysis .gemini/skills/023-assumption-analysis && 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 "023-assumption-analysis" agent skill from https://github.com/jabrena/plinth/tree/main/skills/023-assumption-analysis into .gemini/skills/023-assumption-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "023-assumption-analysis", 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 jabrena/plinth 023-assumption-analysisInstalls 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 jabrena/plinth --skill 023-assumption-analysis -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/jabrena/plinth.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/023-assumption-analysis .github/skills/023-assumption-analysis && 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 "023-assumption-analysis" agent skill from https://github.com/jabrena/plinth/tree/main/skills/023-assumption-analysis into .github/skills/023-assumption-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "023-assumption-analysis", 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 jabrena/plinth --skill 023-assumption-analysis -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install jabrena/plinth 023-assumption-analysis --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jabrena/plinth.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/023-assumption-analysis .opencode/skills/023-assumption-analysis && 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 "023-assumption-analysis" agent skill from https://github.com/jabrena/plinth/tree/main/skills/023-assumption-analysis into .opencode/skills/023-assumption-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "023-assumption-analysis", 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
023-assumption-analysis- GitHub stars
- 447
- Token cost
- ~835 tokens
- SKILL.md length
- 373 words
- Files
- 2 (incl. references)
- Skills in repo
- 124
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
A skill your agent uses when a framed and root-caused problem needs its assumptions made explicit before design or planning begins — explicit Assumptions, Unknowns, and a Validation plan.
- A framed and root-caused problem needs its assumptions made explicit before design
- SKILL.md covers Constraints, When to use this skill, Workflow and Reference
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Planning begins — explicit Assumptions
What it does
023 Assumption Analysis is an agent skill from jabrena/plinth. Use when a framed and root-caused problem needs its assumptions made explicit before design or planning begins — explicit Assumptions, Unknowns, and a Validation plan. This should trigger when an issue's Assumption Analysis point of view needs evaluation, or when a maintainer directly asks to surface hidden assumptions and unknowns before committing to an approach. Part of Plinth Toolkit
Its SKILL.md is about 840 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/023-assumption-analysis.md`).
The repository describes itself as: Plinth is an AI-native engineering toolkit for modern Java enterprise SDLC, built around reusable Commands, Agents, Skills, and MCP Servers. The licence is Apache-2.0.
When your agent uses it
- A framed and root-caused problem needs its assumptions made explicit before design
- Planning begins — explicit Assumptions
- A Validation plan
- An issues Assumption Analysis point of view needs evaluation
Example prompts
- “/023-assumption-analysis”
What it can do on your machine
Read from SKILL.md and the folder at commit dca88dc. 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.
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
023 Assumption Analysis loads about 835 tokens when it runs, and up to ~2.3k if it reads all its reference files. Until then it costs about 104 tokens; SKILL.md has 373 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 jabrena/plinth at commit dca88dc, republished under its Apache-2.0 licence (© jabrena). 373 words, ~835 tokens.
Download SKILL.mdSave it as
.claude/skills/023-assumption-analysis/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- 023-assumption-analysis
- description
- Use when a framed and root-caused problem needs its assumptions made explicit before design or planning begins — explicit Assumptions, Unknowns, and a Validation plan. This should trigger when an issue's Assumption Analysis point of view needs evaluation, or when a maintainer directly asks to surface hidden assumptions and unknowns before committing to an approach. Part of Plinth Toolkit
- license
- Apache-2.0
- metadata.author
- Juan Antonio Breña Moral
- metadata.version
- 0.19.0
Assumption Analysis
Guide production of explicit Assumptions, a list of Unknowns, and a Validation plan for a problem under exploration. This is an interactive SKILL.
What is covered in this Skill?
- Surfacing assumptions implicit in the problem frame and root-cause findings
- Distinguishing an assumption (believed true, not yet verified) from an unknown (not yet known either way)
- Ranking assumptions and unknowns by impact and confidence
- Defining a validation plan that names how and when each risky assumption or unknown will be checked
- Feeding assumption and unknown findings into
024-context-mappingand the remaining Functional Specification lenses
Constraints
Make assumptions and unknowns explicit before they become undiscussed risk. When this technique is orchestrated by another workflow, the orchestrator owns clarifying-question sequencing; when applied standalone, ask directly.
- MUST read
references/023-assumption-analysis.mdbefore applying Assumption Analysis guidance - MUST state each assumption as a falsifiable claim believed true but not yet verified
- MUST distinguish assumptions (believed true) from unknowns (not yet known either way)
- MUST rank assumptions and unknowns by impact if wrong and by current confidence
- MUST define a validation plan naming how and when each high-impact, low-confidence assumption or unknown will be checked
- MUST NOT invent an assumption, unknown, or validation step when the available content is vague or ambiguous; flag the gap for a clarifying question instead
Show full SKILL.md (159 more words)Show less
When to use this skill
- Surface the assumptions behind this problem
- List the unknowns for this issue
- Build a validation plan for these assumptions
- Apply assumption analysis before design begins
- Draft the Assumption Analysis section of a Functional Specification
Workflow
- Read the Reference
Read references/023-assumption-analysis.md, then review the problem frame and root-cause findings for implicit beliefs.
- Surface Explicit Assumptions
State each assumption as a falsifiable claim believed true but not yet verified.
- List Unknowns
List facts that are not yet known either way, distinct from assumptions.
- Rank by Impact and Confidence
Rank assumptions and unknowns by impact if wrong and by current confidence, prioritizing high-impact, low-confidence items.
- Define the Validation Plan
Name how and when each high-priority assumption or unknown will be validated.
- Report the Assumption Analysis
Report the Assumptions, Unknowns, and Validation plan, and flag any item left open pending a clarifying answer.
Reference
For detailed guidance, examples, and constraints, see references/023-assumption-analysis.md.
© jabrena, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file (references) in skills/023-assumption-analysis of jabrena/plinth.
- SKILL.md
- references/023-assumption-analysis.md
Open the folder on GitHubat commit dca88dc
Compare with similar skills
023 Assumption Analysis 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 |
|---|---|---|---|---|---|---|
| 023 Assumption Analysis this skilljabrena/plinth | 447 | — | ~835 | Automated safety check: Pass | Apache-2.0 | |
| Monte Carlo Analyze Root Causesickn33/agentic-awesome-skills | 47k | 1 repos | ~4k | Automated safety check: Pass | Apache-2.0 | |
| Root Cause Paretodavila7/claude-code-templates | 33k | — | ~791 | Automated safety check: Pass | MIT | |
| Root Cause Debugginggarrytan/gstack | 136k | — | ~1.4k | Automated safety check: Pass | MIT | |
| Root Cause Investigationgarrytan/gstack | 136k | — | ~12k | Automated safety check: Notes | MIT | |
| Om Root Causego-musicfox/go-musicfox | 2.6k | 1 repos | ~1.4k | Automated safety check: Notes | GPL-3.0 |
Similar skills
Root Cause Pareto
davila7/claude-code-templates
Build a decision-grade Pareto for downtime, defects, complaints or delays - with unit-of-measure discipline, category hygiene, exposure normalization and a follow-up metric.
Root Cause Debugging
garrytan/gstack
Investigates bugs, errors and stack traces in phases and requires a root-cause hypothesis to be confirmed before any fix is written.
Root Cause Investigation
garrytan/gstack
Debugs in four phases (investigate, analyze, hypothesize, implement) under one rule: no fix is made until the root cause is found.
Om Root Cause
go-musicfox/go-musicfox
Read-only root-cause analysis for a tracker issue. An agent skill from go-musicfox/go-musicfox.
5why Root Cause
hashgraph-online/awesome-codex-plugins
Drill into root cause with a 5-Why why chain, why analysis, or structured root cause investigation.
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Questions about 023 Assumption Analysis
What does 023 Assumption Analysis do?
A skill your agent uses when a framed and root-caused problem needs its assumptions made explicit before design or planning begins — explicit Assumptions, Unknowns, and a Validation plan. 023 Assumption Analysis is an agent skill from jabrena/plinth. Use when a framed and root-caused problem needs its assumptions made explicit before design or planning begins — explicit Assumptions, Unknowns, and a Validation plan.
When should I use 023 Assumption Analysis?
023 Assumption Analysis fits situations like: A framed and root-caused problem needs its assumptions made explicit before design; planning begins — explicit Assumptions; A Validation plan; an issues Assumption Analysis point of view needs evaluation.
How do I install 023 Assumption Analysis in Claude Code?
Run `npx skills add jabrena/plinth --skill 023-assumption-analysis -a claude-code`. Or copy the skill folder (skills/023-assumption-analysis in jabrena/plinth) into .claude/skills/023-assumption-analysis in your project. Claude Code loads it when a task matches its description.
How do I install 023 Assumption Analysis in Codex?
Run `npx skills add jabrena/plinth --skill 023-assumption-analysis -a codex`. Or copy the skill folder (skills/023-assumption-analysis in jabrena/plinth) into .agents/skills/023-assumption-analysis in your project. Codex loads it when a task matches its description.
Can I use 023 Assumption Analysis 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 jabrena/plinth --skill 023-assumption-analysis -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/023-assumption-analysis, .gemini/skills/023-assumption-analysis, .github/skills/023-assumption-analysis and .opencode/skills/023-assumption-analysis in your project.
What does 023 Assumption Analysis need to run?
SKILL.md names no scripts, command-line tools or credentials: 023 Assumption Analysis is instructions for the agent only.
Does 023 Assumption Analysis 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 023 Assumption Analysis 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 023 Assumption Analysis use?
023 Assumption Analysis is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does 023 Assumption Analysis use?
About 835 tokens (SKILL.md is roughly 3.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.5k tokens, read only when the agent opens those files.
What are the alternatives to 023 Assumption Analysis?
Skills that share tags, products or a category with 023 Assumption Analysis: Monte Carlo Analyze Root Cause (sickn33/agentic-awesome-skills, 47k stars), Root Cause Pareto (davila7/claude-code-templates, 33k stars), Root Cause Debugging (garrytan/gstack, 136k stars) and Root Cause Investigation (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 023 Assumption Analysis?
jabrena (a GitHub user) maintains it in jabrena/plinth, which has 447 GitHub stars. The repository holds 124 skills in this directory. The repository was last updated on October 7, 2026.
Source: jabrena/plinth on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.