Agent skill

Circleci

by BagelHole in BagelHole/DevOps-Security-Agent-Skills

Configure CircleCI workflows and orbs for continuous integration and deployment.

Install Circleci

skills CLI

$ npx skills add BagelHole/DevOps-Security-Agent-Skills --skill circleci -a claude-code

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

GitHub CLI

$ gh skill install BagelHole/DevOps-Security-Agent-Skills circleci --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/BagelHole/DevOps-Security-Agent-Skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/devops/ci-cd/circleci .claude/skills/circleci && 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/

Paste into Claude Code

Install the "circleci" agent skill from https://github.com/BagelHole/DevOps-Security-Agent-Skills/tree/main/devops/ci-cd/circleci into .claude/skills/circleci/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "circleci", 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

$skill-installer install https://github.com/BagelHole/DevOps-Security-Agent-Skills/tree/main/devops/ci-cd/circleci

Type 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.

skills CLI

$ npx skills add BagelHole/DevOps-Security-Agent-Skills --skill circleci -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install BagelHole/DevOps-Security-Agent-Skills circleci --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/BagelHole/DevOps-Security-Agent-Skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/devops/ci-cd/circleci .agents/skills/circleci && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "circleci" agent skill from https://github.com/BagelHole/DevOps-Security-Agent-Skills/tree/main/devops/ci-cd/circleci into .agents/skills/circleci/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "circleci", 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.

skills CLI

$ npx skills add BagelHole/DevOps-Security-Agent-Skills --skill circleci -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install BagelHole/DevOps-Security-Agent-Skills circleci --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/BagelHole/DevOps-Security-Agent-Skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/devops/ci-cd/circleci .cursor/skills/circleci && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "circleci" agent skill from https://github.com/BagelHole/DevOps-Security-Agent-Skills/tree/main/devops/ci-cd/circleci into .cursor/skills/circleci/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "circleci", 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

$ gemini skills install https://github.com/BagelHole/DevOps-Security-Agent-Skills.git --path devops/ci-cd/circleci

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add BagelHole/DevOps-Security-Agent-Skills --skill circleci -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install BagelHole/DevOps-Security-Agent-Skills circleci --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/BagelHole/DevOps-Security-Agent-Skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/devops/ci-cd/circleci .gemini/skills/circleci && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "circleci" agent skill from https://github.com/BagelHole/DevOps-Security-Agent-Skills/tree/main/devops/ci-cd/circleci into .gemini/skills/circleci/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "circleci", 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.

GitHub CLI

$ gh skill install BagelHole/DevOps-Security-Agent-Skills circleci

Installs 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).

skills CLI

$ npx skills add BagelHole/DevOps-Security-Agent-Skills --skill circleci -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/BagelHole/DevOps-Security-Agent-Skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/devops/ci-cd/circleci .github/skills/circleci && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "circleci" agent skill from https://github.com/BagelHole/DevOps-Security-Agent-Skills/tree/main/devops/ci-cd/circleci into .github/skills/circleci/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "circleci", 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.

skills CLI

$ npx skills add BagelHole/DevOps-Security-Agent-Skills --skill circleci -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install BagelHole/DevOps-Security-Agent-Skills circleci --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/BagelHole/DevOps-Security-Agent-Skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/devops/ci-cd/circleci .opencode/skills/circleci && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "circleci" agent skill from https://github.com/BagelHole/DevOps-Security-Agent-Skills/tree/main/devops/ci-cd/circleci into .opencode/skills/circleci/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "circleci", 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: circleci
GitHub stars: 1.1k
Token cost: ~2.1k tokens
SKILL.md length: 228 words
Files: 1
Skills in repo: 44
Repo updated: May 22, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Configure CircleCI workflows and orbs for continuous integration and deployment.

Working with CircleCI for CI/CD automation
SKILL.md covers When to Use This Skill, Prerequisites, Configuration File and Executors, plus 8 more sections
Needs AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY
Tasks that involve CI/CD

What it does

Circleci is an agent skill from BagelHole/DevOps-Security-Agent-Skills. Configure CircleCI workflows and orbs for continuous integration and deployment. Create config.yml pipelines, use orbs for reusable configurations, and optimize build performance. Use when working with CircleCI for CI/CD automation.

Its SKILL.md is about 2.1k 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 DevOps & Cloud, covering CI/CD. It works with Docker. The repository describes itself as: Agent-ready DevOps, security, infrastructure, and compliance knowledge base with 80+ skills across Kubernetes, Terraform, AWS/Azure/GCP, AI platform operations, container… The licence is MIT.

When your agent uses it

Working with CircleCI for CI/CD automation
Tasks that involve CI/CD

Example prompts

“/circleci”

Requirements

Node.js
Docker
A credential in AWS_SECRET_ACCESS_KEY

What it can do on your machine

Read from SKILL.md and the folder at commit 0365f57. 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 yaml).
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 these keys or tokens, usually read from environment variables:
- AWS_ACCESS_KEY_ID
- AWS_SECRET_ACCESS_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Circleci loads about 2.1k tokens when it runs. Until then it costs about 60 tokens; SKILL.md has 228 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~60
When it runs · the whole SKILL.md, loaded when a task matches: ~2.1k

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

The full file from BagelHole/DevOps-Security-Agent-Skills at commit 0365f57, republished under its MIT licence (© BagelHole). 228 words, ~2,091 tokens.

Download SKILL.mdSave it as .claude/skills/circleci/SKILL.md (or your agent's skills folder).

name: circleci
description: Configure CircleCI workflows and orbs for continuous integration and deployment. Create config.yml pipelines, use orbs for reusable configurations, and optimize build performance. Use when working with CircleCI for CI/CD automation.
license: MIT
metadata.author: devops-skills
metadata.version: 1.0

CircleCI

Build, test, and deploy applications using CircleCI's cloud-native CI/CD platform.

When to Use This Skill

Use this skill when:

Setting up CI/CD pipelines with CircleCI
Using orbs for reusable configuration
Optimizing build times with caching and parallelism
Configuring CircleCI workflows and approvals
Managing CircleCI contexts and secrets

Prerequisites

CircleCI account connected to repository
Project enabled in CircleCI dashboard
Basic YAML understanding

Configuration File

Create .circleci/config.yml:

yaml

version: 2.1

orbs:
  node: circleci/node@5.2
  docker: circleci/docker@2.4

executors:
  default:
    docker:
      - image: cimg/node:20.10
    working_directory: ~/project

jobs:
  build:
    executor: default
    steps:
      - checkout
      - node/install-packages:
          pkg-manager: npm
      - run:
          name: Build application
          command: npm run build
      - persist_to_workspace:
          root: .
          paths:
            - dist

  test:
    executor: default
    steps:
      - checkout
      - node/install-packages:
          pkg-manager: npm
      - run:
          name: Run tests
          command: npm test

  deploy:
    executor: default
    steps:
      - checkout
      - attach_workspace:
          at: .
      - run:
          name: Deploy
          command: ./deploy.sh

workflows:
  build-test-deploy:
    jobs:
      - build
      - test:
          requires:
            - build
      - deploy:
          requires:
            - test
          filters:
            branches:
              only: main

Executors

Docker Executor

yaml

executors:
  node:
    docker:
      - image: cimg/node:20.10
      - image: cimg/postgres:15.0
        environment:
          POSTGRES_USER: test
          POSTGRES_DB: testdb
    working_directory: ~/app

Machine Executor

yaml

executors:
  linux-machine:
    machine:
      image: ubuntu-2204:current
    resource_class: large

macOS Executor

yaml

executors:
  macos:
    macos:
      xcode: "15.0.0"
    resource_class: macos.m1.medium.gen1

Caching

Dependency Caching

yaml

jobs:
  build:
    steps:
      - checkout
      - restore_cache:
          keys:
            - v1-deps-{{ checksum "package-lock.json" }}
            - v1-deps-
      - run: npm ci
      - save_cache:
          key: v1-deps-{{ checksum "package-lock.json" }}
          paths:
            - node_modules

Multi-Key Caching

yaml

- restore_cache:
    keys:
      - v1-{{ .Branch }}-{{ checksum "package-lock.json" }}
      - v1-{{ .Branch }}-
      - v1-main-
      - v1-

Workspaces

Persist Data

yaml

jobs:
  build:
    steps:
      - checkout
      - run: npm run build
      - persist_to_workspace:
          root: .
          paths:
            - dist
            - node_modules

  deploy:
    steps:
      - attach_workspace:
          at: ~/project
      - run: ./deploy.sh

Parallelism

Test Splitting

yaml

jobs:
  test:
    parallelism: 4
    steps:
      - checkout
      - run:
          name: Run tests
          command: |
            TESTFILES=$(circleci tests glob "test/**/*.test.js" | circleci tests split --split-by=timings)
            npm test -- $TESTFILES
      - store_test_results:
          path: test-results

Workflows

Sequential Jobs

yaml

workflows:
  pipeline:
    jobs:
      - build
      - test:
          requires:
            - build
      - deploy:
          requires:
            - test

Parallel Jobs

yaml

workflows:
  pipeline:
    jobs:
      - build
      - test-unit:
          requires:
            - build
      - test-integration:
          requires:
            - build
      - deploy:
          requires:
            - test-unit
            - test-integration

Manual Approval

yaml

workflows:
  deploy-prod:
    jobs:
      - build
      - test
      - hold:
          type: approval
          requires:
            - test
      - deploy-production:
          requires:
            - hold

Scheduled Workflows

yaml

workflows:
  nightly:
    triggers:
      - schedule:
          cron: "0 2 * * *"
          filters:
            branches:
              only:
                - main
    jobs:
      - build
      - test

Branch Filtering

yaml

workflows:
  build-deploy:
    jobs:
      - build:
          filters:
            branches:
              only:
                - main
                - /feature-.*/
      - deploy:
          filters:
            branches:
              only: main
            tags:
              only: /^v.*/

Orbs

Using Orbs

yaml

version: 2.1

orbs:
  aws-cli: circleci/aws-cli@4.1
  kubernetes: circleci/kubernetes@1.3

jobs:
  deploy:
    executor: aws-cli/default
    steps:
      - aws-cli/setup:
          aws_access_key_id: AWS_ACCESS_KEY_ID
          aws_secret_access_key: AWS_SECRET_ACCESS_KEY
      - kubernetes/install-kubectl
      - run: kubectl apply -f k8s/

Common Orbs

yaml

orbs:
  node: circleci/node@5.2              # Node.js
  docker: circleci/docker@2.4          # Docker builds
  aws-cli: circleci/aws-cli@4.1        # AWS CLI
  aws-ecr: circleci/aws-ecr@9.0        # ECR push
  aws-ecs: circleci/aws-ecs@4.0        # ECS deploy
  gcp-cli: circleci/gcp-cli@3.1        # GCP CLI
  kubernetes: circleci/kubernetes@1.3  # K8s deploy
  slack: circleci/slack@4.12           # Notifications

Docker Builds

yaml

version: 2.1

orbs:
  docker: circleci/docker@2.4

jobs:
  build-and-push:
    executor: docker/docker
    steps:
      - setup_remote_docker:
          version: 20.10.24
      - checkout
      - docker/check
      - docker/build:
          image: myorg/myapp
          tag: $CIRCLE_SHA1
      - docker/push:
          image: myorg/myapp
          tag: $CIRCLE_SHA1

Environment Variables

Project Variables

Set in CircleCI Project Settings > Environment Variables

Contexts

yaml

workflows:
  deploy:
    jobs:
      - deploy-staging:
          context: staging-secrets
      - deploy-production:
          context: production-secrets

Using Variables

yaml

jobs:
  deploy:
    steps:
      - run:
          name: Deploy
          command: |
            aws s3 sync dist/ s3://$S3_BUCKET
          environment:
            AWS_DEFAULT_REGION: us-east-1

Artifacts and Test Results

yaml

jobs:
  test:
    steps:
      - run:
          name: Run tests
          command: npm test -- --coverage
      - store_test_results:
          path: test-results
      - store_artifacts:
          path: coverage
          destination: coverage-report

Resource Classes

yaml

jobs:
  build:
    docker:
      - image: cimg/node:20.10
    resource_class: large  # 4 vCPU, 8GB RAM
    steps:
      - checkout
      - run: npm run build

# Available classes:
# small: 1 vCPU, 2GB RAM
# medium: 2 vCPU, 4GB RAM (default)
# large: 4 vCPU, 8GB RAM
# xlarge: 8 vCPU, 16GB RAM

Common Issues

Issue: Cache Not Restoring

Problem: Cache misses on every build Solution: Verify cache key format, ensure checksum file hasn't changed

Issue: Workspace Attach Fails

Problem: Cannot find persisted workspace Solution: Ensure persist_to_workspace job completed, check paths

Issue: Docker Layer Caching

Problem: Docker builds are slow Solution: Enable Docker Layer Caching in project settings (paid feature)

Best Practices

Use orbs for common tasks
Implement aggressive caching strategies
Use workspaces for sharing data between jobs
Split tests with parallelism for faster builds
Use contexts for environment-specific secrets
Define reusable executors
Store test results for insights

github-actions - GitHub CI/CD
docker-management - Container builds
aws-ecs-fargate - ECS deployments

Files

Just SKILL.md in devops/ci-cd/circleci of BagelHole/DevOps-Security-Agent-Skills.

Open the folder on GitHubat commit 0365f57

Compare with similar skills

Circleci 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.

Circleci compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Circleci this skillBagelHole/DevOps-Security-Agent-Skills	1.1k	—	~2.1k	Automated safety check: Pass	MIT	4 mo ago
Senior DevOps Toolkitmaslennikov-ig/claude-code-orchestrator-kit	260	6 repos	~1.1k	Automated safety check: Notes	Custom licence	7 mo ago
Megatron-LM Base Image BumpNVIDIA/Megatron-LM	18k	—	~2.8k	Automated safety check: Pass	Apache-2.0	today
GitHub Actions CreatorFNOSP/FlyNarwhal	496	1 repos	~2.4k	Automated safety check: Pass	AGPL-3.0	yesterday
Swig CI Reproswig/swig	6.3k	—	~1.2k	Automated safety check: Pass	Custom licence	2 days ago
Reviewwerf/werf	4.7k	—	~2k	Automated safety check: Pass	Apache-2.0	yesterday

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Questions about Circleci

What does Circleci do?

Configure CircleCI workflows and orbs for continuous integration and deployment. Circleci is an agent skill from BagelHole/DevOps-Security-Agent-Skills. Configure CircleCI workflows and orbs for continuous integration and deployment.

When should I use Circleci?

Circleci fits situations like: working with CircleCI for CI/CD automation; tasks that involve CI/CD.

How do I install Circleci in Claude Code?

Run `npx skills add BagelHole/DevOps-Security-Agent-Skills --skill circleci -a claude-code`. Or copy the skill folder (devops/ci-cd/circleci in BagelHole/DevOps-Security-Agent-Skills) into .claude/skills/circleci in your project. Claude Code loads it when a task matches its description.

How do I install Circleci in Codex?

Run `npx skills add BagelHole/DevOps-Security-Agent-Skills --skill circleci -a codex`. Or copy the skill folder (devops/ci-cd/circleci in BagelHole/DevOps-Security-Agent-Skills) into .agents/skills/circleci in your project. Codex loads it when a task matches its description.

Can I use Circleci 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 BagelHole/DevOps-Security-Agent-Skills --skill circleci -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/circleci, .gemini/skills/circleci, .github/skills/circleci and .opencode/skills/circleci in your project.

What does Circleci need to run?

Going by SKILL.md and its folder, Circleci needs credentials named AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY. Our summary lists: Node.js; Docker; A credential in AWS_SECRET_ACCESS_KEY.

Does Circleci 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 Circleci 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 Circleci use?

Circleci is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Circleci use?

About 2.1k tokens (SKILL.md is roughly 8.4k 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 Circleci?

Skills that share tags, products or a category with Circleci: Senior DevOps Toolkit (maslennikov-ig/claude-code-orchestrator-kit, 260 stars), Megatron-LM Base Image Bump (NVIDIA/Megatron-LM, 18k stars), GitHub Actions Creator (FNOSP/FlyNarwhal, 496 stars) and Swig CI Repro (swig/swig, 6.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Circleci?

BagelHole (a GitHub user) maintains it in BagelHole/DevOps-Security-Agent-Skills, which has 1,148 GitHub stars. The repository holds 44 skills in this directory. The repository was last updated on May 22, 2026.

Source: BagelHole/DevOps-Security-Agent-Skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Circleci

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

CircleCI

When to Use This Skill

Prerequisites

Configuration File

Executors

Docker Executor

Machine Executor

macOS Executor

Caching

Dependency Caching

Multi-Key Caching

Workspaces

Persist Data

Parallelism

Test Splitting

Workflows

Sequential Jobs

Parallel Jobs

Manual Approval

Scheduled Workflows

Branch Filtering

Orbs

Using Orbs

Common Orbs

Docker Builds

Environment Variables

Project Variables

Contexts

Using Variables

Artifacts and Test Results

Resource Classes

Common Issues

Issue: Cache Not Restoring

Issue: Workspace Attach Fails

Issue: Docker Layer Caching

Best Practices

Related Skills

Files

Compare with similar skills

Similar skills

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