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From concourse-ci
Use when working with ANY Concourse CI task: writing pipelines, configuring resources, building images with oci-build-task, troubleshooting failing jobs, migrating from legacy patterns, or optimizing CI/CD. Triggers on: Concourse, pipeline, fly CLI, resource type, oci-build-task, set_pipeline, concourse.yml.
npx claudepluginhub netresearch/claude-code-marketplace --plugin concourse-ciHow this skill is triggered — by the user, by Claude, or both
Slash command
/concourse-ci:concourse-ciThis skill is limited to the following tools:
The summary Claude sees in its skill listing — used to decide when to auto-load this skill
Expert guidance for writing, refactoring, and optimizing Concourse CI pipelines (v8.0+).
checkpoints.yamlexamples/basic-pipeline.ymlexamples/docker-build.ymlexamples/modern-ci-cd.ymlexamples/multi-branch.ymlexamples/vars-template.ymlreferences/best-practices.mdreferences/core-concepts.mdreferences/pipeline-syntax.mdreferences/resource-types-catalog.mdreferences/resources-guide.mdscripts/validate-pipeline.shSearches, retrieves, and installs Agent Skills from prompts.chat registry using MCP tools like search_skills and get_skill. Activates for finding skills, browsing catalogs, or extending Claude.
Provides behavioral guidelines to reduce common LLM coding mistakes, focusing on simplicity, surgical changes, assumption surfacing, and verifiable success criteria.
Provides UI/UX resources: 50+ styles, color palettes, font pairings, guidelines, charts for web/mobile across React, Next.js, Vue, Svelte, Tailwind, React Native, Flutter. Aids planning, building, reviewing interfaces.
Share bugs, ideas, or general feedback.
Expert guidance for writing, refactoring, and optimizing Concourse CI pipelines (v8.0+).
oci-build-task| Task | Modern (Recommended) | Legacy (Avoid) |
|---|---|---|
| Building images | oci-build-task + registry-image | docker-image resource |
| Multi-env deploys | across step modifier | Duplicate jobs per env |
| Dynamic pipelines | set_pipeline + instanced pipelines | Manual pipeline duplication |
| Notification symbols | UTF-8 characters (e.g. \u2714 for checkmark, \u274c for X) | HTML entities (e.g. ✓, ✗) |
| Resource styling | Always use icon: property | No icon |
Pipelines consist of resources (external versioned artifacts), jobs (sequences of steps), and optional groups (UI organization). All execution runs in containers.
Key step types: get, put, task, set_pipeline, in_parallel, do, try, load_var. Job hooks: on_success, on_failure, on_error, on_abort, ensure. Note: on_failure (non-zero exit) differs from on_error (infrastructure crash/OOM) -- handle both. Use fly execute to test tasks locally.
See references/core-concepts.md for step types table, lifecycle hooks, and fly CLI essentials.
clean_tags: true, separate read/write resources, force recheck with fly -t T check-resource -r pipeline/resource. See references/resources-guide.md.registry-image expects an object (host: mirror), docker-image expects a URL string. Provide separate formats in CONCOURSE_BASE_RESOURCE_TYPE_DEFAULTS. See references/resources-guide.md.Www-Authenticate header. See references/resources-guide.md.references/pipeline-syntax.md -- Complete YAML schema for pipelines, jobs, resourcesreferences/core-concepts.md -- Step types, lifecycle hooks, fly CLI essentialsreferences/resources-guide.md -- Git-resource, registry-image, docker-image migration, gotcha detailsreferences/best-practices.md -- Optimization, troubleshooting, notifications, deployment patternsreferences/resource-types-catalog.md -- Available resource types (Ansible, Terraform, etc.)Working examples in examples/:
basic-pipeline.yml -- Build-test-deploy with versioningmodern-ci-cd.yml -- oci-build-task, across, build_log_retentionmulti-branch.yml -- Dynamic branch pipelines with set_pipelinedocker-build.yml -- Container image build and pushvars-template.yml -- Variable file organizationUse scripts/validate-pipeline.sh to check pipeline syntax before deployment.