Import
asgeirtj/system_prompts_leaks
Handle explicit /import requests for read-only transcript recovery and a resume checkpoint, or continue work from other coding agents and unnamed artifacts.
Apply Howard Marks investing judgment for second-level thinking, price versus value, risk control, cycles, contrarianism, and defensive investing.
Custom licenceAuto-check passed
Install Most Important Thing In Investing Howard Marks
$ npx skills add simbajigege/book2skills --skill most-important-thing-in-investing-howard-marks -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install simbajigege/book2skills most-important-thing-in-investing-howard-marks --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/simbajigege/book2skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/most-important-thing-in-investing-howard-marks .claude/skills/most-important-thing-in-investing-howard-marks && 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 "most-important-thing-in-investing-howard-marks" agent skill from https://github.com/simbajigege/book2skills/tree/main/skills/most-important-thing-in-investing-howard-marks into .claude/skills/most-important-thing-in-investing-howard-marks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "most-important-thing-in-investing-howard-marks", 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/simbajigege/book2skills/tree/main/skills/most-important-thing-in-investing-howard-marksType 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 simbajigege/book2skills --skill most-important-thing-in-investing-howard-marks -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install simbajigege/book2skills most-important-thing-in-investing-howard-marks --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/simbajigege/book2skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/most-important-thing-in-investing-howard-marks .agents/skills/most-important-thing-in-investing-howard-marks && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "most-important-thing-in-investing-howard-marks" agent skill from https://github.com/simbajigege/book2skills/tree/main/skills/most-important-thing-in-investing-howard-marks into .agents/skills/most-important-thing-in-investing-howard-marks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "most-important-thing-in-investing-howard-marks", 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 simbajigege/book2skills --skill most-important-thing-in-investing-howard-marks -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install simbajigege/book2skills most-important-thing-in-investing-howard-marks --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/simbajigege/book2skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/most-important-thing-in-investing-howard-marks .cursor/skills/most-important-thing-in-investing-howard-marks && 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 "most-important-thing-in-investing-howard-marks" agent skill from https://github.com/simbajigege/book2skills/tree/main/skills/most-important-thing-in-investing-howard-marks into .cursor/skills/most-important-thing-in-investing-howard-marks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "most-important-thing-in-investing-howard-marks", 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/simbajigege/book2skills.git --path skills/most-important-thing-in-investing-howard-marks--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 simbajigege/book2skills --skill most-important-thing-in-investing-howard-marks -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install simbajigege/book2skills most-important-thing-in-investing-howard-marks --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/simbajigege/book2skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/most-important-thing-in-investing-howard-marks .gemini/skills/most-important-thing-in-investing-howard-marks && 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 "most-important-thing-in-investing-howard-marks" agent skill from https://github.com/simbajigege/book2skills/tree/main/skills/most-important-thing-in-investing-howard-marks into .gemini/skills/most-important-thing-in-investing-howard-marks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "most-important-thing-in-investing-howard-marks", 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 simbajigege/book2skills most-important-thing-in-investing-howard-marksInstalls 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 simbajigege/book2skills --skill most-important-thing-in-investing-howard-marks -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/simbajigege/book2skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/most-important-thing-in-investing-howard-marks .github/skills/most-important-thing-in-investing-howard-marks && 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 "most-important-thing-in-investing-howard-marks" agent skill from https://github.com/simbajigege/book2skills/tree/main/skills/most-important-thing-in-investing-howard-marks into .github/skills/most-important-thing-in-investing-howard-marks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "most-important-thing-in-investing-howard-marks", 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 simbajigege/book2skills --skill most-important-thing-in-investing-howard-marks -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install simbajigege/book2skills most-important-thing-in-investing-howard-marks --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/simbajigege/book2skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/most-important-thing-in-investing-howard-marks .opencode/skills/most-important-thing-in-investing-howard-marks && 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 "most-important-thing-in-investing-howard-marks" agent skill from https://github.com/simbajigege/book2skills/tree/main/skills/most-important-thing-in-investing-howard-marks into .opencode/skills/most-important-thing-in-investing-howard-marks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "most-important-thing-in-investing-howard-marks", 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
most-important-thing-in-investing-howard-marks- GitHub stars
- 183
- Token cost
- ~2.5k tokens
- SKILL.md length
- 1,117 words
- Files
- 10 (incl. references)
- Skills in repo
- 37
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Apply Howard Marks investing judgment for second-level thinking, price versus value, risk control, cycles, contrarianism, and defensive investing.
- Works in 5 steps: State first-level and second-level views. → Analyze value vs price. → Build risk register. → …
- SKILL.md covers Overview, When to Use This Skill, Core Principle and Workflow Inventory, plus 6 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Most Important Thing In Investing Howard Marks is an agent skill from simbajigege/book2skills. Apply Howard Marks investing judgment for second-level thinking, price versus value, risk control, cycles, contrarianism, and defensive investing.
Its SKILL.md is about 2.5k tokens, which your agent loads only when the skill is triggered. The skill folder holds 11 other files, including reference files (for example `README.md`, `quotes/market-cycles-quotes.md` and `quotes/risk-quotes.md`).
The repository describes itself as: Create best skills based on best books.
Example prompts
- “/most-important-thing-in-investing-howard-marks”
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- State first-level and second-level views.
- Analyze value vs price.
- Build risk register.
- Assess cycle/psychology.
- Give buy/watch/avoid verdict with missing data.
What it can do on your machine
Read from SKILL.md and the folder at commit e5ba66c. 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 markdown).
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
Most Important Thing In Investing Howard Marks loads about 2.5k tokens when it runs, and up to ~8.1k if it reads all its reference files. Until then it costs about 48 tokens; SKILL.md has 1,117 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,117 words (~2,536 tokens).
“Knowledge source: The Most Important Thing by Howard Marks.”
- name
- most-important-thing-in-investing-howard-marks
- license
- Skill distillation for personal/educational use. Do not reproduce source passages verbatim.
Files
SKILL.md and 9 other files (references) in skills/most-important-thing-in-investing-howard-marks of simbajigege/book2skills.
- SKILL.md
- LICENSE.txt
- README.md
- quotes/market-cycles-quotes.md
- quotes/risk-quotes.md
- quotes/second-level-thinking-quotes.md
- quotes/value-investing-quotes.md
- references/dimensions.md
- references/query-playbook.md
- references/reminders.md
Open the folder on GitHubat commit e5ba66c
Compare with similar skills
Most Important Thing In Investing Howard Marks 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 |
|---|---|---|---|---|---|---|
| Most Important Thing In Investing Howard Marks this skillsimbajigege/book2skills | 183 | — | ~2.5k | Automated safety check: Pass | Custom licence | |
| Importasgeirtj/system_prompts_leaks | 69k | — | ~3.5k | Automated safety check: Pass | CC0-1.0 | |
| Investing Method Most Important ThingSpaceZephyr/career.skill | 160 | — | ~1.1k | Automated safety check: Pass | None | |
| Thinking Second Ordertjboudreaux/cc-thinking-skills | 1.6k | — | ~747 | Automated safety check: Pass | MIT | |
| Second Brain Chat Importundefined-ui/second-brain-os | 1k | — | ~527 | Automated safety check: Pass | MIT | |
| Nx Importnrwl/nx | 29k | 6 repos | ~3.5k | Automated safety check: Pass | MIT |
Similar skills
Investing Method Most Important Thing
SpaceZephyr/career.skill
《投资最重要的事》(Howard Marks, Columbia Business School Press, 2011；2013 增注版) 方法论。
Thinking Second Order
tjboudreaux/cc-thinking-skills
When a change has effects past the immediate fix—incentives, scale, feedback—trace consequence chains with timing and probability before committing.
Second Brain Chat Import
undefined-ui/second-brain-os
Triage an exported chat history into what to ingest, what to archive and what to delete, with a privacy pass first.
Nx Import
nrwl/nx
Import, merge, or combine repositories into an Nx workspace using nx import.
Type Only Imports
thedaviddias/Front-End-Checklist
A skill your agent uses when auditing import statements in TypeScript files, setting up a new TypeScript project, or investigating unexpected bundle inclusions from type-only dependencies.
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Questions about Most Important Thing In Investing Howard Marks
What does Most Important Thing In Investing Howard Marks do?
Apply Howard Marks investing judgment for second-level thinking, price versus value, risk control, cycles, contrarianism, and defensive investing. Most Important Thing In Investing Howard Marks is an agent skill from simbajigege/book2skills. Apply Howard Marks investing judgment for second-level thinking, price versus value, risk control, cycles, contrarianism, and defensive investing.
How do I install Most Important Thing In Investing Howard Marks in Claude Code?
Run `npx skills add simbajigege/book2skills --skill most-important-thing-in-investing-howard-marks -a claude-code`. Or copy the skill folder (skills/most-important-thing-in-investing-howard-marks in simbajigege/book2skills) into .claude/skills/most-important-thing-in-investing-howard-marks in your project. Claude Code loads it when a task matches its description.
How do I install Most Important Thing In Investing Howard Marks in Codex?
Run `npx skills add simbajigege/book2skills --skill most-important-thing-in-investing-howard-marks -a codex`. Or copy the skill folder (skills/most-important-thing-in-investing-howard-marks in simbajigege/book2skills) into .agents/skills/most-important-thing-in-investing-howard-marks in your project. Codex loads it when a task matches its description.
Can I use Most Important Thing In Investing Howard Marks 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 simbajigege/book2skills --skill most-important-thing-in-investing-howard-marks -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/most-important-thing-in-investing-howard-marks, .gemini/skills/most-important-thing-in-investing-howard-marks, .github/skills/most-important-thing-in-investing-howard-marks and .opencode/skills/most-important-thing-in-investing-howard-marks in your project.
What does Most Important Thing In Investing Howard Marks need to run?
SKILL.md names no scripts, command-line tools or credentials: Most Important Thing In Investing Howard Marks is instructions for the agent only.
Does Most Important Thing In Investing Howard Marks 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 Most Important Thing In Investing Howard Marks 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 Most Important Thing In Investing Howard Marks use?
Most Important Thing In Investing Howard Marks has a licence file (from the LICENSE file in the skill folder) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Most Important Thing In Investing Howard Marks use?
About 2.5k tokens (SKILL.md is roughly 10k 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 5.5k tokens, read only when the agent opens those files.
What are the alternatives to Most Important Thing In Investing Howard Marks?
Skills that share tags, products or a category with Most Important Thing In Investing Howard Marks: Import (asgeirtj/system_prompts_leaks, 69k stars), Investing Method Most Important Thing (SpaceZephyr/career.skill, 160 stars), Thinking Second Order (tjboudreaux/cc-thinking-skills, 1.6k stars) and Second Brain Chat Import (undefined-ui/second-brain-os, 1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Most Important Thing In Investing Howard Marks?
simbajigege (a GitHub user) maintains it in simbajigege/book2skills, which has 183 GitHub stars. The repository holds 37 skills in this directory. The repository was last updated on August 26, 2026.
Source: simbajigege/book2skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.