---

name: repo-maintenance description: "Maintain the Langflow monorepo safely across tests, formatting, generated files, versioning, migrations, releases, docs, and CI-adjacent checks." disable-model-invocation: true metadata: disco-role: operating license: MIT

Langflow Repo Maintenance

Use this sub-skill for repository-wide Langflow maintenance: setup, focused validation, formatting, linting, package/workspace version updates, generated artifacts, Alembic and extension migration guardrails, docs checks, and CI-style safety checks.

Route First

• Use this sub-skill for make init, backend/frontend test selection, uv sync caveats, formatting, generated component indexes, docs builds, package version updates, migration guards, release checks, and CI helper failures.
• Route production runbooks, Docker Compose, cloud deployment, storage volumes, runtime secrets, and operational environment variables to ../deployment-and-operations/SKILL.md.
• Route Python component class design, inputs/outputs, bundles, and component-specific tests to ../component-development/SKILL.md.
• Route FastAPI route/service/auth/database implementation details to ../backend-runtime/SKILL.md after this sub-skill helps choose checks.
• Route lfx run, lfx serve, and executor behavior to ../executor-cli/SKILL.md; route SDK client implementation to ../sdk-and-api-clients/SKILL.md.

Maintenance Workflow

1. Classify the touched area: root package metadata, backend/base, lfx, SDK, frontend, docs, migrations, generated artifacts, or bundle/extension policy.
2. Read references/maintainer-checks.md for setup, generated-file, migration, versioning, docs, and CI-style guardrails.
3. Read references/testing-and-formatting.md to choose the smallest safe command set before broad test runs.
4. Use references/troubleshooting.md when install/imports, optional dependencies, config/schema, CLI/API usage, backend/runtime, or environment boundaries fail.
5. Run the bundled deprecated-import checker when changing components, bundles, or LangChain import paths:

python scripts/check_deprecated_imports.py
python scripts/check_deprecated_imports.py src/lfx/src/lfx/components src/bundles --format github

Common Command Map

make check_tools
make init
make backend
make frontend
make format_backend
make format_frontend
make format_frontend_check
make unit_tests args="src/backend/tests/unit/services/authorization/test_guards.py -q" async=false
make lfx_test args="tests/unit/cli/test_validate_command.py -q"
make sdk_test args="tests/test_serialization.py -q"
make test_frontend_file src/__tests__/path/to/test.test.tsx
make build_component_index
make alembic-check
make docs_build
make patch v=1.10.2

Prefer focused commands while iterating, then broaden to package-level checks before handoff. Always use uv run or Make targets for Python commands in this workspace.

Safety Rules

• Do not rename released component classes, mutate persisted flow identifiers, or remove migration-table entries without an explicit compatibility plan.
• Do not run credentialed provider tests, live external services, GPU/transformer workloads, Docker/cloud deployment, package publishing, or destructive database migration commands unless the user explicitly asks and the environment is safe.
• Before package-specific tests in src/backend/base, src/lfx, or src/sdk, sync that package's dev dependencies; the root workspace sync may not install all package-local test extras.
• For generated files, rebuild with the repository command and review the diff; do not hand-edit generated frontend bundles, component indexes, lockfiles, or migration tables unless the generator/guard says so.

Evidence Distilled

This guidance is distilled from Langflow maintainer docs, development setup docs, root and frontend Make targets, Python workspace metadata, package Makefiles, migration and CI helper scripts, backend/LFX/SDK/frontend test layouts, installed package facts, and existing repo-agent instructions. Runtime files here are self-contained; source paths named in prose are evidence names, not required reading for future agents.