Agent skill

Decision Journal

by mohitagw15856 in mohitagw15856/pm-claude-skills

Record decisions the way good judgment compounds — the reasoning, the alternatives, the probabilities, and what would change your mind, written down BEFORE the outcome arrives, then reviewed against…

MITAuto-check passed

Install Decision Journal

skills CLI
$ npx skills add mohitagw15856/pm-claude-skills --skill decision-journal -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install mohitagw15856/pm-claude-skills decision-journal --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/mohitagw15856/pm-claude-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/decision-journal .claude/skills/decision-journal && rm -rf skills-src

Use ~/.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/

Facts

Skill name
decision-journal
GitHub stars
1.4k
Token cost
~1.3k tokens
SKILL.md length
650 words
Files
1
Skills in repo
1,348
Repo updated
First seen
Licence
MIT

At a glance

Record decisions the way good judgment compounds — the reasoning, the alternatives, the probabilities, and what would change your mind, written down BEFORE the outcome arrives, then reviewed against…

  • Works in 5 steps: Write the base case and the… → Probabilities, in numbers: "I think this… → Pre-register the falsifiers: "I'm wrong… → …
  • Asked help me think through this decision
  • SKILL.md covers What This Skill Produces, Required Inputs, Framework: The… and Output Format, plus 6 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Decision Journal is an agent skill from mohitagw15856/pm-claude-skills. Record decisions the way good judgment compounds — the reasoning, the alternatives, the probabilities, and what would change your mind, written down BEFORE the outcome arrives, then reviewed against reality. Use when asked help me think through this decision, start a decision journal, review my past decision, or why do I keep making the same mistake. Produces the pre-registered decision entry, the review-date trigger, and the outcome review that separates bad luck from bad process.

Its SKILL.md is about 1.3k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: 1255 professional Agent Skills for Claude, ChatGPT, Gemini, Cursor & Codex — PRDs, postmortems, leases, medical bills, layoffs, go-bags, new countries. Plain markdown, MIT, in… The licence is MIT.

When your agent uses it

  • Asked help me think through this decision
  • Start a decision journal
  • Review my past decision
  • Why do I keep making the same mistake

Example prompts

  • “/decision-journal”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Write the base case and the alternatives, fairly: the entry states each real option with its strongest case — a journal of straw men…
  2. Probabilities, in numbers: "I think this works" becomes "70% this reaches X by [date]." Numbers feel false and are — but a written 70% can…
  3. Pre-register the falsifiers: "I'm wrong if [observable] by [date]" — written now, while it's cheap. This is the line that makes the future…
  4. Process vs. outcome, ruthlessly separated at review: four quadrants — good process/good outcome (skill), good process/bad outcome…
  5. Patterns beat entries: every ~10 reviews, read across: systematically overoptimistic on timelines? Underweighting exit costs? Deciding…

What it can do on your machine

Read from SKILL.md and the folder at commit 1cbf1f0. 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

Decision Journal loads about 1.3k tokens when it runs. Until then it costs about 126 tokens; SKILL.md has 650 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~126
When it runs · the whole SKILL.md, loaded when a task matches
~1.3k

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 mohitagw15856/pm-claude-skills at commit 1cbf1f0, republished under its MIT licence (© mohitagw15856). 650 words, ~1,285 tokens.

Download SKILL.mdSave it as .claude/skills/decision-journal/SKILL.md (or your agent's skills folder).
name
decision-journal
description
Record decisions the way good judgment compounds — the reasoning, the alternatives, the probabilities, and what would change your mind, written down BEFORE the outcome arrives, then reviewed against reality. Use when asked help me think through this decision, start a decision journal, review my past decision, or why do I keep making the same mistake. Produces the pre-registered decision entry, the review-date trigger, and the outcome review that separates bad luck from bad process.

Decision Journal Skill

Memory is a defense attorney: after the outcome arrives, everyone remembers having known it all along, and the reasoning that actually drove the choice is quietly rewritten. A decision journal defeats that — the reasoning gets pre-registered before reality votes, so the review can ask the only question that improves judgment: was the process good, given what was knowable then? Good decisions lose sometimes; bad ones win sometimes; only the written record can tell you which you're making. This is the library's 600th skill because it's the one all the others compound through.

What This Skill Produces

  • The entry — situation, the real options, the choice, the reasoning, explicit probabilities, and the pre-registered "I'm wrong if…" markers
  • The review trigger — a date and the observable that will have resolved by then
  • The outcome review — process vs. luck separated, the delta between expected and actual, and the transferable lesson
  • The pattern read — across entries: the recurring biases this specific person's journal reveals

Required Inputs

Ask for these if not provided:

  • The decision — what's actually being chosen, and by when; "should I…" questions get reframed into the options actually on the table
  • The honest state — what's known, what's guessed, how they feel (mood is data: tired-angry-rushed decisions deserve their own flag in the entry)
  • For reviews: the original entry and what actually happened — the review is against the entry, never against memory

Framework: The Pre-Registration Rules

  1. Write the base case and the alternatives, fairly: the entry states each real option with its strongest case — a journal of straw men reviews into nothing. "Do nothing" is always listed; it's the option most decisions are actually competing against.
  2. Probabilities, in numbers: "I think this works" becomes "70% this reaches X by [date]." Numbers feel false and are — but a written 70% can be scored later, and "probably" cannot. Calibration only ever comes from this discomfort.
  3. Pre-register the falsifiers: "I'm wrong if [observable] by [date]" — written now, while it's cheap. This is the line that makes the future review honest and the mid-course correction possible without ego litigation.
  4. Process vs. outcome, ruthlessly separated at review: four quadrants — good process/good outcome (skill), good process/bad outcome (variance — change nothing), bad process/good outcome (the most dangerous quadrant: luck teaching a bad lesson), bad process/bad outcome (tuition — extract the lesson). The review names the quadrant before discussing feelings.
  5. Patterns beat entries: every ~10 reviews, read across: systematically overoptimistic on timelines? Underweighting exit costs? Deciding worst when rushed? The journal's compounding value is the personal bias list no generic advice can give.
Show full SKILL.md (222 more words)Show less

Output Format

Decision Entry: [title] — [date]

Deciding: [the actual choice + deadline] · State: [known / guessed / mood flag]

Options (each at its strongest)

  1. … 2. … 3. Do nothing: …

The Call

Choice: [option] · Because: [the 2–3 load-bearing reasons] Expectations: [X% that (observable) by (date); …] I'm wrong if: [observable + date] · Review on: [date]


(At review:)

Outcome Review — [date]

What happened: … vs. expected: … Quadrant: [skill / variance / lucky / tuition] — [why] Transferable lesson: [one sentence, about process not this event]

Quality Checks

  • Every option including do-nothing gets its strongest case
  • At least one expectation carries a number and a date
  • The falsifier is observable, not a feeling
  • Reviews compare against the written entry, never memory
  • The quadrant is named before the lesson is drawn

Anti-Patterns

  • Do not journal after deciding-in-your-heart and call it deliberation — the entry's value is being written while genuinely open
  • Do not grade decisions by outcome alone — the lucky quadrant is where bad habits get reinforced
  • Do not write unfalsifiable expectations ("this will probably work out") — they review into nothing
  • Do not skip small decisions categorically — the journal's patterns come fastest from frequent entries
  • Do not let the review become self-flagellation or victory laps — one quadrant, one lesson, close the entry

Example Trigger Phrases

  • "Help me think through this decision."
  • "Start a decision journal."
  • "Review my past decision."
  • "Why do I keep making the same mistake?"

© mohitagw15856, 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/decision-journal of mohitagw15856/pm-claude-skills.

Open the folder on GitHubat commit 1cbf1f0

Compare with similar skills

Decision Journal 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.

Decision Journal compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Decision Journal this skillmohitagw15856/pm-claude-skills1.4k—~1.3kAutomated safety check: PassMIT
Recordingcodewhale-hq/Codewhale41k—~540Automated safety check: PassMIT
Architecture Decision Recordsaffaan-m/ECC276k4 repos~1.8kAutomated safety check: PassMIT
Deepseek Reasonruvnet/ruflo74k—~626Automated safety check: NotesMIT
Architecture Decision Recordsaffaan-m/ECC276k1 repos~863Automated safety check: PassMIT
Architecture Decision Recordsaffaan-m/ECC276k—~1.1kAutomated safety check: PassMIT

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Questions about Decision Journal

What does Decision Journal do?

Record decisions the way good judgment compounds — the reasoning, the alternatives, the probabilities, and what would change your mind, written down BEFORE the outcome arrives, then reviewed against…. Decision Journal is an agent skill from mohitagw15856/pm-claude-skills. Record decisions the way good judgment compounds — the reasoning, the alternatives, the probabilities, and what would change your mind, written down BEFORE the outcome arrives, then reviewed against reality.

When should I use Decision Journal?

Decision Journal fits situations like: asked help me think through this decision; start a decision journal; review my past decision; why do I keep making the same mistake.

How do I install Decision Journal in Claude Code?

Run `npx skills add mohitagw15856/pm-claude-skills --skill decision-journal -a claude-code`. Or copy the skill folder (skills/decision-journal in mohitagw15856/pm-claude-skills) into .claude/skills/decision-journal in your project. Claude Code loads it when a task matches its description.

How do I install Decision Journal in Codex?

Run `npx skills add mohitagw15856/pm-claude-skills --skill decision-journal -a codex`. Or copy the skill folder (skills/decision-journal in mohitagw15856/pm-claude-skills) into .agents/skills/decision-journal in your project. Codex loads it when a task matches its description.

Can I use Decision Journal 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 mohitagw15856/pm-claude-skills --skill decision-journal -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/decision-journal, .gemini/skills/decision-journal, .github/skills/decision-journal and .opencode/skills/decision-journal in your project.

What does Decision Journal need to run?

SKILL.md names no scripts, command-line tools or credentials: Decision Journal is instructions for the agent only.

Does Decision Journal 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 Decision Journal 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 Decision Journal use?

Decision Journal 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 Decision Journal use?

About 1.3k tokens (SKILL.md is roughly 5.1k 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 Decision Journal?

Skills that share tags, products or a category with Decision Journal: Recording (codewhale-hq/Codewhale, 41k stars), Architecture Decision Records (affaan-m/ECC, 276k stars), Deepseek Reason (ruvnet/ruflo, 74k stars) and Architecture Decision Records (affaan-m/ECC, 276k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Decision Journal?

mohitagw15856 (a GitHub user) maintains it in mohitagw15856/pm-claude-skills, which has 1,434 GitHub stars. The repository holds 1,348 skills in this directory. The repository was last updated on October 9, 2026.

Source: mohitagw15856/pm-claude-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.