Agent skill

Golem Custom Snapshot Effect

by golemcloud in golemcloud/golem

Enabling schema-driven snapshots and snapshot-based recovery for Effect Golem agents.

Custom licenceAuto-check passed

Install Golem Custom Snapshot Effect

skills CLI
$ npx skills add golemcloud/golem --skill golem-custom-snapshot-effect -a claude-code

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

GitHub CLI
$ gh skill install golemcloud/golem golem-custom-snapshot-effect --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/golemcloud/golem.git skills-src && mkdir -p .claude/skills && cp -r skills-src/golem-skills/skills/effect/golem-custom-snapshot-effect .claude/skills/golem-custom-snapshot-effect && 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
golem-custom-snapshot-effect
GitHub stars
1.5k
Token cost
~2k tokens
SKILL.md length
727 words
Files
1
Skills in repo
289
Repo updated
First seen
Licence
Custom licence

At a glance

Enabling schema-driven snapshots and snapshot-based recovery for Effect Golem agents.

  • Works in 2 steps: Manual component updates — carry durable… → Faster recovery and oplog compaction —…
  • Adding manual update support
  • SKILL.md covers When to Use Snapshots, Add Schema-Driven Snapshot State, How Recovery Works and Evolve the State Schema, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Golem Custom Snapshot Effect is an agent skill from golemcloud/golem. Enabling schema-driven snapshots and snapshot-based recovery for Effect Golem agents. Use when adding manual update support, evolving persisted state schemas, or reducing recovery time for long-running durable agents whose oplogs grow through recurring work or frequent state changes.

Its SKILL.md is about 2k 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: Golem Cloud is the agent-native platform for building AI agents and distributed applications that never lose state, never duplicate work, and never require you to build…

When your agent uses it

  • Adding manual update support
  • Evolving persisted state schemas
  • Reducing recovery time for long-running durable agents whose oplogs grow through recurring work
  • Frequent state changes

Example prompts

  • “/golem-custom-snapshot-effect”

Workflow steps

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

  1. Manual component updates — carry durable state across revisions whose API changes are not
  2. Faster recovery and oplog compaction — restore a long-running agent from a recent snapshot,

What it can do on your machine

Read from SKILL.md and the folder at commit efc90f0. 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 typescript).

    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

Golem Custom Snapshot Effect loads about 2k tokens when it runs. Until then it costs about 78 tokens; SKILL.md has 727 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~78
When it runs · the whole SKILL.md, loaded when a task matches
~2k

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 727 words (~2,001 tokens).

“Effect Golem agents use Snapshot.define(...) to persist schema-validated state for manual (snapshot-based) component updates and faster durable recovery. Prefer this schema-driven path over custom byte or JSON serialization.”

— opening of SKILL.md by golemcloud, Custom licence
name
golem-custom-snapshot-effect

Read the full SKILL.md on GitHub

Files

Just SKILL.md in golem-skills/skills/effect/golem-custom-snapshot-effect of golemcloud/golem.

Open the folder on GitHubat commit efc90f0

Compare with similar skills

Golem Custom Snapshot Effect 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.

Golem Custom Snapshot Effect compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Golem Custom Snapshot Effect this skillgolemcloud/golem1.5k—~2kAutomated safety check: PassCustom licence
Golem Enable Otlp Effectgolemcloud/golem1.5k—~2.5kAutomated safety check: PassCustom licence
Golem Custom Snapshot Moonbitgolemcloud/golem1.5k—~1.9kAutomated safety check: PassCustom licence
Golem Custom Snapshot Rustgolemcloud/golem1.5k—~2.4kAutomated safety check: PassCustom licence
Golem Custom Snapshot Scalagolemcloud/golem1.5k—~2.1kAutomated safety check: PassCustom licence
Golem Custom Snapshot TSgolemcloud/golem1.5k—~3.2kAutomated safety check: PassCustom licence

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  • Golem Custom Snapshot TS

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Questions about Golem Custom Snapshot Effect

What does Golem Custom Snapshot Effect do?

Enabling schema-driven snapshots and snapshot-based recovery for Effect Golem agents. Golem Custom Snapshot Effect is an agent skill from golemcloud/golem. Enabling schema-driven snapshots and snapshot-based recovery for Effect Golem agents.

When should I use Golem Custom Snapshot Effect?

Golem Custom Snapshot Effect fits situations like: adding manual update support; evolving persisted state schemas; reducing recovery time for long-running durable agents whose oplogs grow through recurring work; frequent state changes.

How do I install Golem Custom Snapshot Effect in Claude Code?

Run `npx skills add golemcloud/golem --skill golem-custom-snapshot-effect -a claude-code`. Or copy the skill folder (golem-skills/skills/effect/golem-custom-snapshot-effect in golemcloud/golem) into .claude/skills/golem-custom-snapshot-effect in your project. Claude Code loads it when a task matches its description.

How do I install Golem Custom Snapshot Effect in Codex?

Run `npx skills add golemcloud/golem --skill golem-custom-snapshot-effect -a codex`. Or copy the skill folder (golem-skills/skills/effect/golem-custom-snapshot-effect in golemcloud/golem) into .agents/skills/golem-custom-snapshot-effect in your project. Codex loads it when a task matches its description.

Can I use Golem Custom Snapshot Effect 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 golemcloud/golem --skill golem-custom-snapshot-effect -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/golem-custom-snapshot-effect, .gemini/skills/golem-custom-snapshot-effect, .github/skills/golem-custom-snapshot-effect and .opencode/skills/golem-custom-snapshot-effect in your project.

What does Golem Custom Snapshot Effect need to run?

SKILL.md names no scripts, command-line tools or credentials: Golem Custom Snapshot Effect is instructions for the agent only.

Does Golem Custom Snapshot Effect 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 Golem Custom Snapshot Effect 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 Golem Custom Snapshot Effect use?

Golem Custom Snapshot Effect has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Golem Custom Snapshot Effect use?

About 2k tokens (SKILL.md is roughly 8k 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 Golem Custom Snapshot Effect?

Skills that share tags, products or a category with Golem Custom Snapshot Effect: Golem Enable Otlp Effect (golemcloud/golem, 1.5k stars), Golem Custom Snapshot Moonbit (golemcloud/golem, 1.5k stars), Golem Custom Snapshot Rust (golemcloud/golem, 1.5k stars) and Golem Custom Snapshot Scala (golemcloud/golem, 1.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Golem Custom Snapshot Effect?

golemcloud (a GitHub organization) maintains it in golemcloud/golem, which has 1,507 GitHub stars. The repository holds 289 skills in this directory. The repository was last updated on October 9, 2026.

Source: golemcloud/golem on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.