Cognitive memory system using FSRS-6 spaced repetition. An agent skill from sundial-org/awesome-openclaw-skills.

No licenceAuto-check passedEducation

Install Vestige

skills CLI
$ npx skills add sundial-org/awesome-openclaw-skills --skill vestige -a claude-code

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

GitHub CLI
$ gh skill install sundial-org/awesome-openclaw-skills vestige --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/sundial-org/awesome-openclaw-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/vestige .claude/skills/vestige && 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
vestige
GitHub stars
663
Token cost
~1.1k tokens
SKILL.md length
240 words
Files
1
Skills in repo
383
Repo updated
First seen
Licence
None found

At a glance

Cognitive memory system using FSRS-6 spaced repetition. An agent skill from sundial-org/awesome-openclaw-skills.

  • Persistent recall across sessions
  • SKILL.md covers Binary Location, When to Use, Quick Commands and MCP Tools Available, plus 5 more sections
  • Calls jq
  • Tasks that involve Study guides and flashcards

What it does

Vestige is an agent skill from sundial-org/awesome-openclaw-skills. Cognitive memory system using FSRS-6 spaced repetition. Memories fade naturally like human memory. Use for persistent recall across sessions.

Its SKILL.md is about 1.1k 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 Education, covering Study guides and flashcards. The repository describes itself as: Top OpenClaw skills, with the most popular and useful ones.

When your agent uses it

  • Persistent recall across sessions
  • Tasks that involve Study guides and flashcards

Example prompts

  • “/vestige”

What it can do on your machine

Read from SKILL.md and the folder at commit b80cde2. 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

    Shell commands in SKILL.md call:

    • jq

    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

Vestige loads about 1.1k tokens when it runs. Until then it costs about 37 tokens; SKILL.md has 240 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~37
When it runs · the whole SKILL.md, loaded when a task matches
~1.1k

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

Without a licence we can't republish the file, so here is its outline and opening line. It has 240 words (~1,124 tokens).

“Cognitive memory system based on 130 years of memory research. FSRS-6 spaced repetition, spreading activation, synaptic tagging—all running 100% local.”

— opening of SKILL.md by sundial-org
name
vestige

Read the full SKILL.md on GitHub

Files

Just SKILL.md in skills/vestige of sundial-org/awesome-openclaw-skills.

Open the folder on GitHubat commit b80cde2

Compare with similar skills

Vestige 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.

Vestige compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Vestige this skillsundial-org/awesome-openclaw-skills663—~1.1kAutomated safety check: PassNone
Deep Reading Analystginobefun/deep-reading-analyst-skill3544 repos~3.6kAutomated safety check: PassMIT
NihaishaJuneYaooo/nihaisha-nishi-tcm2.2k—~4kAutomated safety check: PassNone
Claude Certification Tutorrohitg00/ai-engineering-from-scratch67k—~3kAutomated safety check: PassMIT
StudyVault Quiz Tutorbevibing/tutor-skills1.3k—~1.4kAutomated safety check: PassMIT
Project Mastery Coachtudoumashu/ai-memory-skillpack456—~1.8kAutomated safety check: PassMIT

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Categories

Questions about Vestige

What does Vestige do?

Cognitive memory system using FSRS-6 spaced repetition. An agent skill from sundial-org/awesome-openclaw-skills. Vestige is an agent skill from sundial-org/awesome-openclaw-skills. Cognitive memory system using FSRS-6 spaced repetition.

When should I use Vestige?

Vestige fits situations like: persistent recall across sessions; tasks that involve Study guides and flashcards.

How do I install Vestige in Claude Code?

Run `npx skills add sundial-org/awesome-openclaw-skills --skill vestige -a claude-code`. Or copy the skill folder (skills/vestige in sundial-org/awesome-openclaw-skills) into .claude/skills/vestige in your project. Claude Code loads it when a task matches its description.

How do I install Vestige in Codex?

Run `npx skills add sundial-org/awesome-openclaw-skills --skill vestige -a codex`. Or copy the skill folder (skills/vestige in sundial-org/awesome-openclaw-skills) into .agents/skills/vestige in your project. Codex loads it when a task matches its description.

Can I use Vestige 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 sundial-org/awesome-openclaw-skills --skill vestige -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/vestige, .gemini/skills/vestige, .github/skills/vestige and .opencode/skills/vestige in your project.

What does Vestige need to run?

Going by SKILL.md and its folder, Vestige needs the command-line tools its instructions call (jq).

Does Vestige 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 Vestige 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 Vestige use?

No licence was found for Vestige or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Vestige use?

About 1.1k tokens (SKILL.md is roughly 4.5k 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 Vestige?

Skills that share tags, products or a category with Vestige: Deep Reading Analyst (ginobefun/deep-reading-analyst-skill, 354 stars), Nihaisha (JuneYaooo/nihaisha-nishi-tcm, 2.2k stars), Claude Certification Tutor (rohitg00/ai-engineering-from-scratch, 67k stars) and StudyVault Quiz Tutor (bevibing/tutor-skills, 1.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Vestige?

sundial-org (a GitHub organization) maintains it in sundial-org/awesome-openclaw-skills, which has 663 GitHub stars. The repository holds 383 skills in this directory. The repository was last updated on March 7, 2026.

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