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mistake-notebook

Skill to query and update a mistake notebook to memorize mistake. Use this skill when: 1. Encountered a severe problem, needs to recall for historical problem solving experience 2. After fixed a severe mistake with a clear solution valuable to be recorded 3. User requested 'Do not make this mistake again'

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Repository
archibate/dotfiles-opencode
Last source activity
February 18, 2026 at 02:49
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English
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name
mistake-notebook
description
Skill to query and update a mistake notebook to memorize mistake. Use this skill when: 1. Encountered a severe problem, needs to recall for historical problem solving experience 2. After fixed a severe mistake with a clear solution valuable to be recorded 3. User requested 'Do not make this mistake again'
# Mistake Notebook ## Location Mistake Notebook appear in two locations: - Project-local Mistake Notebook: `MISTAKE.md` in project root folder. - Universal Mistake Notebook: `~/MISTAKE.md` in user home directory. Mistake Notebook is used to record common mistakes made in previous conversation, memorizing problem solving experience for future use. Agents can: 1. Read Mistake Notebook for quick problem -> solution look up. 2. Append to Mistake Notebook when new problem being solved. This prevents agents from making the same mistake again. ### Project-local vs Universal Project-local Mistake Notebook `MISTAKE.md`: - Record **project related** mistakes not applies universally. - Tracked by git if in a git repository. Universal Mistake Notebook `~/MISTAKE.md`: - Record **generic**, **programmatic** mistakes that has no project-local context. - Appears in user home directory. ## Triggers ### Trigger 1: Severe Problem Encountered When encounter a severe problem: - Look for solution in both `MISTAKE.md` and `~/MISTAKE.md`. - If found: - Try fix the problem using the solution found in Mistake Notebook. - If problem fixed: - Done. - If problem persists: - Figure out why the existing solution in Mistake Notebook didn't work. - If the problem solved: - Goto 'Trigger 2: Severe Problem Fixed' - If not found: - Work out the problem on ourselves. - If the problem solved: - Goto 'Trigger 2: Severe Problem Fixed' ### Trigger 2: Severe Problem Fixed After you fixed a severe mistake: - If the problem is solved with a **clear solution** that is **valuable to be recorded**: - Goto 'Memorizing Problem Solutions'. ### Trigger 3: User Ask for Memorizing Mistake When user requested 'Do not make this mistake again': - If the problem not solved yet according to conversation context: - Work on solve the problem first. - If the problem is solved: - Report user for your discovery. - Goto 'Memorizing Problem Solutions'. - If the problem is solved as user intented: - Goto 'Memorizing Problem Solutions'. ## Memorizing Problem Solutions - If a problem is solved with a clear solution: - Check if this problem is already recorded in `MISTAKE.md` and `~/MISTAKE.md`: - Already recorded: - If the recorded solution is not working or out-of-date: - Update the recorded solution according to 'Mistake Solution Format'. - Not recorded yet: - If the problem is related to this project: - Choose `MISTAKE.md`. - If the problem is generic and universal: - Choose `~/MISTAKE.md`. - Append soltuion to the choosen Mistake Notebook according to 'Mistake Solution Format'. - Make a brief report in response for: - The mistake you made. - What you learnt from this mistake. - What is the solution to the problem. - Report that you have updated the Mistake Notebook. ## Mistake Solution Format Mistake Notebook maintains a quick problem -> solution look up reference in the following format: ```markdown # Mistake Notebook This is the Mistake Notebook, use the mistake-notebook skill to retrive more details. Below is a list of mistakes I previously made and solved: ## Mistake - [A short title] - Creation Date: YYYY-MM-DD - Last Update Date: YYYY-MM-DD - Project: [project folder path when this mistake was found] - Branch: [branch when this mistake was happening] - Commit: [commit SHA when this mistake was happening] ### Problem: [list situations when the problem occurred:] - XXX fails. - YYY reports ZZZ. - ... ### Insights: [list your insights and discoveries when solving this problem:] - This is because XXX lacks AAA. - I found that YYY depends on BBB for CCC. - ... ### Solution: [A brief explaination (<10 words) on how this problem was solved.] [list steps how this problem was solved:] - Try turn on AAA. - Try add BBB for CCC. - ... - And XXX fixed. ``` ## Edge Cases - If Mistake Notebook not exist, create one. - If Mistake Notebook exist, append to it. - If writting into Mistake Notebook failed due to permission issues, report by outputing response in the 'Mistake' format.
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