Release radar

1nika: v12workflow:3  id: release-radar4  description: "dependency release feed → diff vs last run → only the NEW ships"5​6model: ollama/qwen3.5:4b   # local · zero key · swap for any provider in the catalog7​8const:9  releases_feed: "https://github.com/tokio-rs/tokio/releases.atom"10  state_path: "out/release-radar.json"11⛨permits:12  ⛨tools: ["nika:fetch", "nika:jq", "nika:json_diff", "nika:read", "nika:write"]13  ⛨fs:14    # The state-file pattern touches exactly ONE path, on both sides: read15    # last run's state, write the next. `const.state_path` names it and a run16    # cannot move a const, so the same literal is the whole boundary —17    # `create_dirs:` makes out/ underneath it on the first run.18    ⛨read: ["out/release-radar.json"]19    ⛨write: ["out/release-radar.json"]20  ⛨net:21    ⛨http: ["github.com"]   # the feed's host · net entries are exact names, never globs22​23tasks:24  # First run has no state file · recover to an empty list.25  no_state:26    ◆invoke:27      tool: "nika:jq"28      args: { input: [], expression: "." }29​30  previous:31    ◆invoke:32      tool: "nika:read"33      args: { path: "${{ const.state_path }}" }34    on_error:35      on_codes: [NIKA-BUILTIN-READ-001]   # not-found ONLY · a permission error still fails loudly36      recover: ${{ tasks.no_state.output }}37​38  feed:39    ◆invoke:40      tool: "nika:fetch"41      args:42        url: "${{ const.releases_feed }}"43        mode: feed44    output:45      entries: "[.items[] | {title, url, published}]"46    on_error:47      # No network → this sample stands in for the RAW feed response, so it48      # carries `items:` exactly as `mode: feed` returns it and the `output:`49      # jq above runs over it unchanged. Recovering the BINDING's shape50      # instead makes the jq throw NIKA-VAR-004 — the recovery must mirror the51      # response, never the binding.52      recover:53        items:54          - { title: "tokio 1.48.0", url: "https://github.com/tokio-rs/tokio/releases/tag/tokio-1.48.0", published: "2026-07-21T09:14:00Z" }55          - { title: "tokio 1.47.1", url: "https://github.com/tokio-rs/tokio/releases/tag/tokio-1.47.1", published: "2026-07-02T16:40:00Z" }56​57  fresh:58    with:59      previous: ${{ tasks.previous.output }}60      entries: ${{ tasks.feed.entries }}61    ◆invoke:62      tool: "nika:json_diff"63      args:64        before: "${{ with.previous }}"65        after: "${{ with.entries }}"66​67  digest:68    with:69      fresh: ${{ tasks.fresh.output }}70      entries: ${{ tasks.feed.entries }}71    when: ${{ size(with.fresh) > 0 }}72    ◇infer:73      max_tokens: 50074      prompt: |75        New releases appeared on our dependency radar (RFC 6902 patch76        against last run) ·77        ${{ with.fresh }}78        Full current feed · ${{ with.entries }}79        Write 3 bullets · what shipped · whether it looks breaking ·80        what to check in our code.81​82  save_state:83    with:84      entries: ${{ tasks.feed.entries }}85    ◆invoke:86      tool: "nika:write"87      args:88        path: "${{ const.state_path }}"89        content: "${{ with.entries }}"90        create_dirs: true91        overwrite: true92​93outputs:94  new_entries:95    value: ${{ tasks.fresh.output }}96    description: "RFC 6902 ops · empty = nothing new since last run"97  # Untyped on purpose: `digest` is `when:`-gated, so on a quiet week it is98  # SKIPPED and this reads null. Exporting it is also what keeps those tokens99  # from being dead spend — an infer whose output nothing consumes is paid for100  # and thrown away, and `check` says so.101  briefing: ${{ tasks.digest.output }}102​