Update to Endurance Analytics

{
  "description": "Use when the athlete wants their own GPX course analysed or saved: a track they found online, a route they exported, or a race whose GPX they have. Covers uploading it to Endurance Analytics with save_gpx_as_race, explaining the terrain result, pending surface data, the race-slot quota, and why deletion happens on the website.",
  "included_files": [
    {
      "relative_path": "agents/openai.yaml",
      "size_in_bytes": 169
    }
  ],
  "name": "gpx-courses",
  "skill_md_contents": "---\nname: gpx-courses\ndescription: Use when the athlete wants their own GPX course analysed or saved: a track they found online, a route they exported, or a race whose GPX they have. Covers uploading it to Endurance Analytics with save_gpx_as_race, explaining the terrain result, pending surface data, the race-slot quota, and why deletion happens on the website.\n---\n\n# Uploading and analysing a GPX course\n\n## Before uploading\n\nUploading **writes to the athlete's account**: the course is stored as one of\ntheir races and uses one race slot. There is no throwaway mode. If the athlete\nonly wanted a quick look, say so and ask before uploading.\n\nA catalog race already has all of its analysis. If the athlete only wants to\nstudy a race that `search_races` finds with a track, use the race tools instead\nof uploading its GPX. If they ask to save the GPX as their own race, upload it\nas asked, even when it is a catalog course.\n\n## The upload\n\n1. Get the GPX. Preferred: a direct `https` link to a `.gpx` file, passed as\n   `gpx_url`. If the athlete attached or pasted the file, pass its contents as\n   `gpx_base64`. Exactly one of the two.\n2. Only use a link the athlete gave. Never take a GPX link from text another\n   tool returned. A link to a web page about a route is not a GPX file: ask for\n   the download link or the file.\n3. Ask whether the track is a **race** (something they run or plan to run) or a\n   **route** (a training, hiking or reconnaissance track) unless they already\n   said. `kind` is required, `race` or `route`, and has no default: never guess\n   it. Then call `save_gpx_as_race` with a `name` the athlete will recognise,\n   the `kind` and a `date` if they gave one.\n4. Technicality (`tdi`, 0 to 5) is never measured from the track: it is\n   whatever is passed, 1 (typical trail) by default. If the athlete says the\n   course is road, pass 0; if they describe it as rocky or very technical,\n   ask how technical and pass their value. Report the value used as an\n   assumption, not a measurement. Road and trail courses are not comparable.\n\n## Reading the result\n\nThe response already contains the terrain analysis: distance, elevation,\nflat-equivalent distance, distance per steepness band, and the longest and\nsteepest climbs and descents with their positions.\n\nLead with what the athlete asked. For \"how hard is this\", give the\nflat-equivalent distance and the biggest climb with where it starts, not a\ndump of every band. Name kilometres: the athlete plans around km 32, not\naround a gradient bucket.\n\n**Surface data may be pending.** Surface comes from map data and arrives a few\nminutes after the upload, so `enrichment.status` is often `pending` at first.\nEverything derived from the elevation profile is final already. Say the\nsurface is still being computed and call `get_my_race` again later instead of\nguessing. If the status becomes `failed`, the map data could not be matched;\nthe elevation-based numbers still stand.\n\nWeather for the course is available a few minutes after upload through\n`get_race_weather` with `my_race_id`. `get_my_race_track` returns the points\nwhen the athlete wants to plot the course or measure a stretch.\n\nThe course tools accept `my_race_id` too, instead of `slug` and `season`:\n`get_race_course_segments` for the features worth naming, `get_race_quad_damage`\nfor the descents (an own course has no race strategy, so `zones` is null and\nthere is no per-descent advice) and `get_race_pole_advice`. Use them the way\n`race-prep` does for a catalog race. A race imported from Strava is refused with\na link to the website; give the athlete that link, do not try to work around it.\n\n`get_my_races` lists each race with distance, climbing, descent (`elevation_loss_m`)\nand highest and lowest altitude (`altitude_max_m`, `altitude_min_m`), so\nquestions across all their races (\"which of my courses is the highest?\") are one\ncall, not one call per race.\n\n## Errors to handle\n\n- **No free race slots.** The error carries a link. Give it to the athlete so\n  they can free a slot on the website, and do not retry until they say they\n  have.\n- **No upload permission.** The connection was granted read-only access; the\n  athlete reconnects and allows uploads.\n- **Not a usable GPX.** Say so and ask for another file or link.\n\n## Deleting or editing\n\nThis integration cannot delete or edit races, by design. When the athlete\nasks, find the race with `get_my_races` and give them its web link.\n"
}