# Dev Cycle

> Crawlberg iteration loops codified as Taskfile tasks — alef install/generate/format/bump, core and binding builds, e2e generate/build/test cycles, cleanup tiers, and the mock-server / stale-.so / precompiled-NIF / generated-e2e gotchas. Load when running or debugging crawlberg build, alef regeneration, or e2e workflows, or when unsure which task to run.

- Skill: `xberg-io/dev-cycle` (Agent Skill)
- Install (CLI): `npx skillmds@latest add xberg-io/dev-cycle`
- Raw SKILL.md: https://api.skillmd.com/api/skills/xberg-io/dev-cycle/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Productivity
- Author: xberg-io (https://skillmd.com/u/xberg-io)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/xberg-io/dev-cycle

---


Iteration loops are codified as Taskfile tasks. Prefer them over ad-hoc commands.

### After alef changes

```text
task alef:install              # cargo install --path ../alef/crates/alef-cli
task alef:generate             # alef all --clean --format=false
task alef:format               # explicit Alef formatting; task format excludes this
VERSION=0.15.30 task alef:bump # bump pin in alef.toml + reinstall + regen
```

### After crawlberg-core changes

```text
task build          # core-only
task build:bindings # all bindings
task build:all      # core + all bindings
```

### E2E cycles

```text
task e2e:generate # regenerate all language test suites from fixtures
task e2e:build    # build bindings and the generated mock-server for e2e
task e2e:test     # run generated e2e suites
task e2e:all      # generate + build + run generated e2e suites
```

### Cleanup

```text
task clean           # per-language artifacts
task clean:workspace # cargo target + alef IR cache + legacy mock-server bins
task clean:e2e       # venvs, node_modules, _build, lockfiles, vendor/
task clean:full      # all of the above
```

### Gotchas (codified, but worth knowing)

- **Two mock-server binaries.** `tools/mock-server` is legacy/unused; `e2e/rust/src/main.rs` is alef-generated and the binary all language conftests actually spawn. `task e2e:build` builds the right one at `e2e/rust/target/release/mock-server`.
- **Python venv stale `.so`.** After `task python:build:dev`, the e2e venv at `e2e/python/.venv` keeps a stale extension. `task python:cycle` runs `uv sync --reinstall` to refresh.
- **Elixir precompiled NIF.** Rustler's precompiled binary is tagged at the package's release version and lags local source. `CRAWLBERG_BUILD=1` is set in `.task/languages/elixir.yml::e2e:test` so the e2e suite always builds the NIF from local source.
- **Generated e2e files.** `e2e/<lang>/` is alef-generated — never hand-edit. Modify fixtures or alef codegen, then `task alef:generate`.