Agent skill

Golem Atomic Block Effect

by golemcloud in golemcloud/golem

Using atomic regions and durability controls in Effect-based Golem agents.

Custom licenceAuto-check passedDatabases

Install Golem Atomic Block Effect

skills CLI
$ npx skills add golemcloud/golem --skill golem-atomic-block-effect -a claude-code

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

GitHub CLI
$ gh skill install golemcloud/golem golem-atomic-block-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-atomic-block-effect .claude/skills/golem-atomic-block-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-atomic-block-effect
GitHub stars
1.5k
Token cost
~3.3k tokens
SKILL.md length
1,329 words
Files
1
Skills in repo
289
Repo updated
First seen
Licence
Custom licence

At a glance

Using atomic regions and durability controls in Effect-based Golem agents.

  • Works in 3 steps: On success it writes the matching end… → On a typed failure, defect, or… → An outer Effect.catchAll, Effect.either,…
  • An @golemcloud/effect-golem project needs whole-region replay
  • SKILL.md covers Atomic Regions, Manual Begin and End Markers, Persistence Level and Idempotence Mode, plus 5 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Golem Atomic Block Effect is an agent skill from golemcloud/golem. Using atomic regions and durability controls in Effect-based Golem agents. Use when an @golemcloud/effect-golem project needs whole-region replay, Durability.atomically, persistence or idempotence modes, oplog replication, idempotency keys, or scoped retry policies.

Its SKILL.md is about 3.3k 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 Databases. 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

  • An @golemcloud/effect-golem project needs whole-region replay
  • Durability.atomically
  • Idempotence modes
  • Oplog replication

Example prompts

  • “/golem-atomic-block-effect”

Workflow steps

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

  1. On success it writes the matching end marker and returns the body's value.
  2. On a typed failure, defect, or interruption it leaves the region open and invokes the host's
  3. An outer Effect.catchAll, Effect.either, or similar operator cannot handle a body failure and

What it can do on your machine

Read from SKILL.md and the folder at commit c6a3029. 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

    Links to these hosts (documentation or services it may open):

    • github.com

    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 Atomic Block Effect loads about 3.3k tokens when it runs. Until then it costs about 73 tokens; SKILL.md has 1,329 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~73
When it runs · the whole SKILL.md, loaded when a task matches
~3.3k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,329 words (~3,320 tokens).

“Golem agents are durable by default. Use these advanced controls only when replay behavior must change for a specific group of externally observable effects. Import the Effect SDK API from the package root; do not translate callback helpers from @golemcloud/golem-ts-sdk.”

— opening of SKILL.md by golemcloud, Custom licence
name
golem-atomic-block-effect

Read the full SKILL.md on GitHub

Files

Just SKILL.md in golem-skills/skills/effect/golem-atomic-block-effect of golemcloud/golem.

Open the folder on GitHubat commit c6a3029

Compare with similar skills

Golem Atomic Block 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 Atomic Block Effect compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Golem Atomic Block Effect this skillgolemcloud/golem1.5k—~3.3kAutomated safety check: PassCustom licence
Keeper Stress AnalysisClickHouse/ClickHouse50k—~4.7kAutomated safety check: PassApache-2.0
Perf ComparisonClickHouse/ClickHouse50k—~3.9kAutomated safety check: NotesApache-2.0
Patch Release CheckClickHouse/ClickHouse50k—~4kAutomated safety check: NotesApache-2.0
Evolving The Data ModelTriliumNext/Trilium38k—~2.1kAutomated safety check: PassAGPL-3.0
Hybrid Cloud Outboxesgetsentry/sentry46k—~4.8kAutomated safety check: PassCustom licence

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Categories

Questions about Golem Atomic Block Effect

What does Golem Atomic Block Effect do?

Using atomic regions and durability controls in Effect-based Golem agents. Golem Atomic Block Effect is an agent skill from golemcloud/golem. Using atomic regions and durability controls in Effect-based Golem agents.

When should I use Golem Atomic Block Effect?

Golem Atomic Block Effect fits situations like: an @golemcloud/effect-golem project needs whole-region replay; durability.atomically; idempotence modes; oplog replication.

How do I install Golem Atomic Block Effect in Claude Code?

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

How do I install Golem Atomic Block Effect in Codex?

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

Can I use Golem Atomic Block 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-atomic-block-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-atomic-block-effect, .gemini/skills/golem-atomic-block-effect, .github/skills/golem-atomic-block-effect and .opencode/skills/golem-atomic-block-effect in your project.

What does Golem Atomic Block Effect need to run?

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

Does Golem Atomic Block Effect access the network?

SKILL.md names 1 domain. As links in the text: github.com. This is read from the text; nothing was executed.

Is Golem Atomic Block 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 Atomic Block Effect use?

Golem Atomic Block 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 Atomic Block Effect use?

About 3.3k tokens (SKILL.md is roughly 13k 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 Atomic Block Effect?

Skills that share tags, products or a category with Golem Atomic Block Effect: Keeper Stress Analysis (ClickHouse/ClickHouse, 50k stars), Perf Comparison (ClickHouse/ClickHouse, 50k stars), Patch Release Check (ClickHouse/ClickHouse, 50k stars) and Evolving The Data Model (TriliumNext/Trilium, 38k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Golem Atomic Block 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 8, 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.