"nika: v1\nworkflow:\n  id: standup-digest\n  description: \"Read yesterday's commits, write today's standup note\"\n\nmodel: ollama/qwen3.5:4b   # local · zero key · swap for groq/llama-3.3-70b (a fast one-liner job)\n\npermits:\n  tools: [\"nika:date\", \"nika:write\"]\n  exec: [\"git\"]              # the ONE program this workflow may run\n  fs: { write: [\"out/standup-note.md\"] }\n\ntasks:\n  # No deps between these two → the engine runs them in parallel.\n  today:\n    invoke:\n      tool: \"nika:date\"\n      args: { op: now }\n\n  history:\n    exec:\n      command: [\"git\", \"log\", \"--since=yesterday\", \"--oneline\", \"--no-merges\"]\n\n  digest:\n    with:\n      today: \u0024{{ tasks.today.output }}\n      history: \u0024{{ tasks.history.output }}\n    infer:\n      max_tokens: 400          # a standup note is short · the ceiling says so\n      prompt: |\n        Date · \u0024{{ with.today }}\n        Commits since yesterday ·\n        \u0024{{ with.history }}\n\n        Write my standup note · 3 bullets · done / doing / blocked.\n        Plain words · no fluff. If there are no commits, say so in one line.\n\n  save:\n    with:\n      digest: \u0024{{ tasks.digest.output }}\n    invoke:\n      tool: \"nika:write\"\n      args:\n        path: out/standup-note.md\n        create_dirs: true\n        content: \"\u0024{{ with.digest }}\"\n\noutputs:\n  note: \u0024{{ tasks.digest.output }}\n"

{"a":{"graph_format":2,"workflow":"standup-digest","nodes":[{"id":"today","verb":"invoke","tool":"nika:date","permits":["tool: nika:date"]},{"id":"history","verb":"exec","permits":["exec: git"]},{"id":"digest","verb":"infer","model":"ollama/qwen3.5:4b","permits":[]},{"id":"save","verb":"invoke","tool":"nika:write","permits":["fs.write: out/standup-note.md","tool: nika:write"]}],"edges":[{"from":"digest","to":"save","kind":"value"},{"from":"history","to":"digest","kind":"value"},{"from":"today","to":"digest","kind":"value"}]},"engine":"0.106.1"}

showcase · tier 1 · builders

Standup digest

Reads yesterday’s commits, stamps the date from a builtin, and writes your three bullets.

Every morning: the note is already written. You glance, you tweak one word, you go. · conformance-gated in nika-spec ↗ · re-proven at every push

4tasksthe plan falls out of the bindings
3wavesparallel by construction
3verbs exercisedinvoke · exec · infer
T1the tierbuilders

The whole file

4 tasks · 3 waves

The plan falls out of the bindings, nothing is scheduled by hand.

standup-digest.nika.yamlsource

1nika: v12workflow:3  id: standup-digest4  description: "Read yesterday's commits, write today's standup note"56model: ollama/qwen3.5:4b   # local · zero key · swap for groq/llama-3.3-70b (a fast one-liner job)78⛨permits:9  ⛨tools: ["nika:date", "nika:write"]10  ⛨exec: ["git"]              # the ONE program this workflow may run11  ⛨fs: { write: ["out/standup-note.md"] }1213tasks:14  # No deps between these two → the engine runs them in parallel.15  today:16    ◆invoke:17      tool: "nika:date"18      args: { op: now }1920  history:21    ▷exec:22      command: ["git", "log", "--since=yesterday", "--oneline", "--no-merges"]2324  digest:25    with:26      today: ${{ tasks.today.output }}27      history: ${{ tasks.history.output }}28    ◇infer:29      max_tokens: 400          # a standup note is short · the ceiling says so30      prompt: |31        Date · ${{ with.today }}32        Commits since yesterday ·33        ${{ with.history }}3435        Write my standup note · 3 bullets · done / doing / blocked.36        Plain words · no fluff. If there are no commits, say so in one line.3738  save:39    with:40      digest: ${{ tasks.digest.output }}41    ◆invoke:42      tool: "nika:write"43      args:44        path: out/standup-note.md45        create_dirs: true46        content: "${{ with.digest }}"4748outputs:49  note: ${{ tasks.digest.output }}50

audited · 4 tasks · 3 waves · permits declarednika 0.106.1

nika inspect · engine 0.106.1 · vendored graph, never re-derived

3 declared edges · 3 waves · the plan falls out of the bindings

try itopen in the playground guidethe walkthrough · docs verbinvoke verbexec verbinfer toolnika:date toolnika:write