Pp Uk Train Goat

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UK Train Goat — Printing Press CLI

Prerequisites: Install the CLI

This skill drives the uk-train-goat-pp-cli binary. You must verify the CLI is installed before invoking any command from this skill. If it is missing, install it first:

1. Install via the Printing Press installer:

   npx -y @mvanhorn/printing-press-library install uk-train-goat --cli-only

2. Verify: uk-train-goat-pp-cli --version
3. Ensure $GOPATH/bin (or $HOME/go/bin) is on $PATH.

If the npx install fails (no Node, offline, etc.), fall back to a direct Go install (requires Go 1.26.6 or newer):

go install github.com/mvanhorn/printing-press-library/library/travel/uk-train-goat/cmd/uk-train-goat-pp-cli@latest

If --version reports "command not found" after install, the install step did not put the binary on $PATH. Do not proceed with skill commands until verification succeeds.

uk-train-goat wraps the free National Rail OpenLDBWS API with a Cobra command tree, an MCP server, and an offline station database. Live departures, arrivals, journey planning A->B, and service status all run from one terminal command and ship with a programmatic eval grader that pins tool descriptions for LLM agents.

When to Use This CLI

Use uk-train-goat for any UK National Rail question an agent or terminal user has: live departures, live arrivals, journey planning between two stations on today or a future date, service-status / delay-reason lookups, and walk-up adult fare lookups between stations. The local SQLite store gives every command offline CRS resolution and supports saved-commute features (go, saved status, recent) that a thin API wrapper cannot. Do not use uk-train-goat for booking, fare comparisons against Trainline, advance fares, railcard discounts, EU/Eurostar trains, or real-time push notifications; those are explicit non-goals for v0.1.

When Not to Use This CLI

Do not activate this CLI for requests that require creating, updating, deleting, publishing, commenting, upvoting, inviting, ordering, sending messages, booking, purchasing, or changing remote state. This printed CLI exposes read-only commands for inspection, export, sync, and analysis.

Unique Capabilities

These capabilities aren't available in any other tool for this API.

Local state that compounds

• go — Run a saved commute in one keystroke; resolves origin, destination, and time-window from the local store.

  Pick this when an agent needs the user's named recurring route resolved from local state, not a fresh A->B planning call.

  uk-train-goat-pp-cli go morning --json --select services.std,services.platform,services.etd

• saved status — Fans out across every saved route and prints a single ranked status table for all your commutes.

  Pick this on disruption mornings when a user has multiple saved commutes and wants one answer, not N separate board calls.

  uk-train-goat-pp-cli saved status --json --select routes.name,routes.next.std,routes.next.etd

• recent — Re-runs your recent A->B searches with fresh live data, side-by-side, so iterative trip planning is one keystroke per refresh.

  Pick this when the user is iterating dates or origins for one trip; every previous query stays one keystroke away.

  uk-train-goat-pp-cli recent --json --select queries.from,queries.to,queries.next.std

Agent-native plumbing

• stations — FTS5 search over the local UK CRS code table; resolves Paddington -> PAD with no network call.

  Pick this whenever the user names a station in prose; resolve to CRS once, then call any other uk-train-goat command.

  uk-train-goat-pp-cli stations --search kings --json --select results.crs,results.name

• board — Accept a comma-separated list of CRS codes and merge departures across all of them into one ranked time-ordered list.

  Pick this when an agent needs the next London-bound (or other regional cluster) departure across multiple terminals at once.

  uk-train-goat-pp-cli board PAD,KGX,EUS --in 30m --json --select services.origin,services.std,services.destination

• eval — Programmatic eval grader that scores an LLM agent against a fixture suite of natural-language UK-rail prompts; 80% pass-rate threshold blocks ship.

  Run this in CI on changes to internal/cli or internal/mcp; failing evals mean an agent will pick the wrong tool or wrong args.

  EVAL_AGENT_MODEL=claude-sonnet-4-6 uk-train-goat-pp-cli eval --json

Service-specific content

• why — Combines GetServiceDetails delay/cancel reasons with adjacent operator alerts into one screen explaining what is going wrong with one service.

  Pick this when the user wants to understand a delay, not just see it.

  uk-train-goat-pp-cli why L8rW0bMonHt3K4IengVPQw== --json

• journey — Ranks A->B options by combined scheduled-time, current delay, and platform-known signal so on-time-but-later beats earlier-but-late.

  Pick this for trip planning during disruption; choosing the earliest scheduled departure is often wrong when delays exist.

  uk-train-goat-pp-cli journey RDG PAD --rank --json --select journeys.std,journeys.delay,journeys.platform

Fares (walk-up, RJFAF feed)

• fare <from-crs> <to-crs> — Looks up walk-up adult fares between two stations from the official National Rail RJFAF static fares feed stored locally. Returns results sorted by price, with ticket name, route code, restriction description, and single/return flag. Requires fare sync to have been run first.

  Pick this when the user asks what a walk-up ticket costs between two stations; not for advance or railcard-discounted fares.

  uk-train-goat-pp-cli fare PAD RDG --json
  uk-train-goat-pp-cli fare PAD RDG --date 2026-07-01 --json
  uk-train-goat-pp-cli fare PAD RDG --offline --json  # skip freshness probe

• fare sync — Downloads and loads the RJFAF fares feed from National Rail Open Data into the local SQLite store. Requires NR_OPENDATA_USERNAME and NR_OPENDATA_PASSWORD. Re-run when fares data is stale (feed has a 35-day freshness backstop).

  Run once before using fare; re-run when the freshness warning appears.

  NR_OPENDATA_USERNAME=user NR_OPENDATA_PASSWORD=pass uk-train-goat-pp-cli fare sync --json

  Not supported by fare: railcard discounts, advance fares, operator-specific/split fares, booking.

Command Reference

status — Internal placeholder resource. Real commands are hand-authored against the OpenLDBWS wrapper.

• uk-train-goat-pp-cli status — Placeholder; deleted post-generate. Real CLI commands live in internal/cli/board.go etc.

Finding the right command

When you know what you want to do but not which command does it, ask the CLI directly:

uk-train-goat-pp-cli which "<capability in your own words>"

which resolves a natural-language capability query to the best matching command from this CLI's curated feature index. Exit code 0 means at least one match; exit code 2 means no confident match — fall back to --help or use a narrower query.

Recipes

Daily morning commute check

uk-train-goat-pp-cli go morning --json

Resolves the saved commute named 'morning' and returns the next departures filtered to your destination.

Compact multi-station agent query

uk-train-goat-pp-cli board PAD,KGX,EUS --in 30m --agent --select services.origin,services.std,services.destination,services.etd

Multi-origin fan-out + dotted-path field selection; tight payload for an LLM context window. --in / --within accept human-readable durations (30m, 1h).