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  "Slug": "openaq-mcp-server",
  "Name": "openaq-mcp-server",
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  "IssueTotal": 21,
  "Held": 18,
  "Issues": [
    {
      "Title": "bug(definitions): id inputs accept non-positive values — raw 422 on locationId, false no-coverage on parametersId",
      "Excerpt": "### Server version\n\n0.1.7\n\n### mcp-ts-core version\n\n0.11.0\n\n### Runtime\n\nBun\n\n### Runtime version\n\nBun 1.3.14\n\n### Transport\n\nHTTP (Streamable HTTP)\n\n### OS\n\nmacOS 26.1\n\n### Description\n\nSix numeric id inputs are `z.number().int()` with no lower bound, and `tools/list` advertises `\"minimum\": -9007199254740991` on each: `locationId` and `parametersId` on `openaq_get_measurements` and `openaq_get_readings`, and `parametersId` on `openaq_find_locations` and `openaq_list_countries`.\n\nA non-positive…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/33",
      "PublishedAt": "2026-08-13T01:46:51.000Z",
      "State": "closed",
      "Comments": 3,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "feat(outputs): add station provider to get_readings, and provider plus timezone to get_measurements",
      "Excerpt": "### Use case\n\nBefore citing a reading, a practitioner needs to know who operated the monitor, and they need the station timezone to read hourly and daily periods. Today `openaq_get_readings` returns `timezone` but no provider, and `openaq_get_measurements` returns neither, so each call needs a follow-up `openaq://location/{id}` read. The README's data-use section says `openaq_get_readings` returns `provider`, which isn't true yet.\n\n### Proposed behavior\n\nAdd the station's provider to `location`…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/30",
      "PublishedAt": "2026-08-11T14:09:32.000Z",
      "State": "closed",
      "Comments": 3,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(openaq_get_measurements): date-only ranges clip station-local daily buckets and drop the last hour; missing intervals go unreported",
      "Excerpt": "### Server version\n\n0.1.7\n\n### mcp-ts-core version\n\n0.11.0\n\n### Runtime\n\nBun\n\n### Runtime version\n\nBun 1.3.14\n\n### Transport\n\nHTTP (Streamable HTTP)\n\n### OS\n\nmacOS 26.1\n\n### Description\n\nOpenAQ computes `daily` rollups over each station's local calendar day ([docs](https://docs.openaq.org/resources/measurements)). `openaq_get_measurements` expands a date-only range to UTC bounds instead (`T00:00:00Z` to `T23:59:59Z`), so any station off UTC gets a partial-day bucket at each edge. That bucket's…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/29",
      "PublishedAt": "2026-08-11T14:09:15.000Z",
      "State": "closed",
      "Comments": 3,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(openaq_dataframe_query): a capped result reports the cap as the full count and drops the truncation flag",
      "Excerpt": "### Server version\n\n0.1.7\n\n### mcp-ts-core version\n\n0.11.0\n\n### Runtime\n\nBun 1.3.14\n\n### Transport\n\nstdio\n\n### OS\n\nmacOS 26.1\n\n### Description\n\n`openaq_dataframe_query` bounds its result only at the canvas `defaultRowLimit` of 10,000 rows, and\ntells the caller nothing when it hits that bound.\n\nThree defects at one call site. The handler runs `instance.query(sql, { signal })` with no\n`rowLimit` or `preview`, so 10,000 rows of an arbitrary projection can land in one response. The\nDuckDB provider…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/25",
      "PublishedAt": "2026-08-11T14:07:38.000Z",
      "State": "closed",
      "Comments": 3,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(format): content and structuredContent expose different row sets",
      "Excerpt": "### Server version\n\n0.1.7\n\n### mcp-ts-core version\n\n0.11.0\n\n### Runtime\n\nBun 1.3.14\n\n### Transport\n\nstdio\n\n### OS\n\nmacOS 26.1\n\n### Description\n\n`openaq_get_measurements` and `openaq_dataframe_query` put more rows in `structuredContent` than in\n`content[]`. #15 made the measurements text state the split honestly, but a text-only client and a\nstructured-content client still reason over different samples of the same call. The omitted rows are\nresponse data, not display metadata.\n\nRelated: #15,…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/24",
      "PublishedAt": "2026-08-11T14:07:21.000Z",
      "State": "closed",
      "Comments": 3,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(docker): multiarch install crashes in emulated scanner",
      "Excerpt": "### Server version\n\n0.4.0\n\n### mcp-ts-core version\n\n0.13.9\n\n### Runtime\n\nBun\n\n### Runtime version\n\n1.4.2\n\n### Transport\n\nHTTP (Streamable HTTP)\n\n### OS\n\nDocker Buildx on an arm64 host, targeting Linux amd64 and arm64.\n\n### Description\n\nThe Dockerfile runs the production dependency install on the target platform. For amd64 on an arm64 builder, [Bun](https://bun.sh)'s Socket scanner subprocess aborts under QEMU, preventing the multiarch image from building. Native compilation succeeds.\n\n### Steps…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/47",
      "PublishedAt": "2026-09-26T22:01:35.000Z",
      "State": "closed",
      "Comments": 2,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(openaq_get_measurements): canvas inference truncates fractional measurements",
      "Excerpt": "### Server version\n\n0.3.0\n\n### mcp-ts-core version\n\n0.13.9\n\n### Runtime\n\nBun\n\n### Runtime version\n\nBun 1.4.2\n\n### Transport\n\nstdio\n\n### Description\n\n`openaq_get_measurements` stages measurements without an explicit schema. Inference from the first 100 rows can truncate later fractions or return numbers as strings, changing SQL results.\n\n### Steps to reproduce\n\n1. Supply 101 OpenAQ-shaped hourly buckets through a stub service: the first 100 have `value` and summary statistics `0`, the last…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/45",
      "PublishedAt": "2026-09-26T21:08:23.000Z",
      "State": "closed",
      "Comments": 2,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(outputs): missing coordinates, country, and provider are rendered as 0,0, XX, and Unknown",
      "Excerpt": "### Server version\n\n0.1.10\n\n### mcp-ts-core version\n\n0.13.6\n\n### Runtime\n\nBun\n\n### Runtime version\n\nBun 1.4.0\n\n### Transport\n\nstdio\n\n### OS\n\nmacOS 27.0\n\n### Description\n\nTwo output shapers replace missing upstream location data with made-up values:\n\n- `openaq_find_locations` (`shapeLocation`) turns a null latitude or longitude into `0`, a null `country` into `{ code: \"XX\", name: \"Unknown\" }`, and a null `provider` into `\"Unknown\"`.\n- `openaq_get_readings` turns a null latitude or longitude into…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/40",
      "PublishedAt": "2026-09-24T05:07:12.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(openaq_get_measurements): first matching sensor wins even when it is a dormant duplicate",
      "Excerpt": "### Server version\n\n0.2.0\n\n### mcp-ts-core version\n\n0.13.6\n\n### Runtime\n\nBun\n\n### Runtime version\n\nBun 1.4.0\n\n### Transport\n\nstdio\n\n### OS\n\nmacOS 27.0\n\n### Description\n\n`openaq_get_measurements` resolves the station's sensor with the first entry whose parameter id matches (`location.sensors.find(...)` in `get-measurements.tool.ts`). Some stations carry more than one sensor for the same parameter, and the first can be dormant. The tool then pulls the dormant sensor's series and reports no data…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/43",
      "PublishedAt": "2026-09-24T07:12:18.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(openaq_find_locations): coordinate search pages in id order, so page 1 is not the nearest stations",
      "Excerpt": "### Server version\n\n0.2.0\n\n### mcp-ts-core version\n\n0.13.6\n\n### Runtime\n\nBun\n\n### Runtime version\n\nBun 1.4.0\n\n### Transport\n\nstdio\n\n### OS\n\nmacOS 27.0\n\n### Description\n\n`openaq_find_locations` with `coordinates` returns OpenAQ's pages as they come and sorts each page by distance. OpenAQ's `/v3/locations` can only order by `id`, so page 1 is the lowest-id matching stations, not the nearest ones. The `page` description tells callers that \"a near-me coordinates search should stay on page 1\", which…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/42",
      "PublishedAt": "2026-09-24T06:15:48.000Z",
      "State": "open",
      "Comments": 0,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(openaq_find_locations): iso rejects the -99 code openaq_list_countries returns for Dhekelia",
      "Excerpt": "### Server version\n\n0.1.10\n\n### mcp-ts-core version\n\n0.13.6\n\n### Runtime\n\nBun\n\n### Runtime version\n\nBun 1.4.0\n\n### Transport\n\nstdio\n\n### OS\n\nmacOS 27.0\n\n### Description\n\n`openaq_list_countries` relays every country OpenAQ lists, and its `code` field tells callers to pass it as `iso` to `openaq_find_locations`. OpenAQ lists Dhekelia (country id 7) with the placeholder code `-99`, which `find_locations` rejects because `iso` must be two characters. OpenAQ serves that code as a filter:…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/39",
      "PublishedAt": "2026-09-24T04:49:35.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(openaq_get_measurements): a limit that does not divide 5000 overshoots the pull ceiling the cap notice states",
      "Excerpt": "### Server version\n\n0.1.10\n\n### mcp-ts-core version\n\n0.13.6\n\n### Runtime\n\nBun\n\n### Runtime version\n\nBun 1.4.0\n\n### Transport\n\nstdio\n\n### OS\n\nmacOS 27.0\n\n### Description\n\nThe pager checks `allRows.length < MAX_ROWS` before each fetch, then appends a whole page. So when `limit` does not divide 5,000, the pull ends above the ceiling. The staged canvas table and `pulledCount` report the true count, while the cap notice says `Pull capped at 5000 rows`, which contradicts them. The default `limit:…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/38",
      "PublishedAt": "2026-09-22T17:33:06.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(openaq_get_measurements): re-staging the same sensor on a reused canvas silently replaces the earlier table",
      "Excerpt": "### Server version\n\n0.1.9\n\n### mcp-ts-core version\n\n0.13.6\n\n### Runtime\n\nBun\n\n### Runtime version\n\nBun 1.4.0\n\n### Transport\n\nstdio\n\n### OS\n\nmacOS 27.0\n\n### Description\n\nThe staged table is named `measurements_<sensorId>` with no aggregation or range component, and the handler drops that name before registering. Reusing a `canvas_id` for the same sensor at a different aggregation or window therefore replaces the earlier series, while README and `docs/design.md` describe reuse as additive…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/36",
      "PublishedAt": "2026-09-22T16:32:28.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(openaq_get_measurements): a supplied canvas_id is ignored when the result does not spill",
      "Excerpt": "### Server version\n\n0.1.9\n\n### mcp-ts-core version\n\n0.13.6\n\n### Runtime\n\nBun\n\n### Runtime version\n\nBun 1.4.0\n\n### Transport\n\nstdio\n\n### OS\n\nmacOS 27.0\n\n### Description\n\n`openaq_get_measurements` accepts a `canvas_id` to stage a second series onto an existing canvas,\nbut only reads it when the pull is large enough to spill — `canvas.acquire` sits inside the overflow\nbranch. On a range that fits the inline preview, the id is discarded silently: the call succeeds\nwith no notice, no error, and no…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/35",
      "PublishedAt": "2026-09-20T14:32:20.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(openaq_get_measurements): a staged canvas returns no runtime pointer to the dataframe tools",
      "Excerpt": "### Server version\n\n0.1.7\n\n### mcp-ts-core version\n\n0.11.0\n\n### Runtime\n\nBun\n\n### Runtime version\n\nBun 1.3.14\n\n### Transport\n\nstdio\n\n### Description\n\n`openaq_get_measurements` is the only tool that mints a DataCanvas handle, and the response that\nmints one names no tool that can read it. An agent holding an opaque `canvasId` has to already know\nthis server registers `openaq_dataframe_describe` and `openaq_dataframe_query`; one that doesn't\nreports the truncation and stops, or re-calls with a…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/32",
      "PublishedAt": "2026-08-13T01:12:58.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "feat(openaq_find_locations): expose monitor, mobile, and provider filters",
      "Excerpt": "### Use case\n\nAn air-quality practitioner often needs one station class rather than every sensor in an area: reference monitors for regulatory comparison, fixed stations for a stable series, or one provider's network for consistent methods. `openaq_find_locations` returns `isMonitor`, `isMobile`, and `provider` but cannot filter on them, and filtering a 100-row page client-side misses matches on later pages.\n\n### Proposed behavior\n\nAdd three optional filters to `openaq_find_locations`,…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/31",
      "PublishedAt": "2026-08-11T14:10:03.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(openaq_list_countries): no limit or page — unfiltered and common-pollutant calls return the whole catalog",
      "Excerpt": "### Server version\n\n0.1.7\n\n### mcp-ts-core version\n\n0.11.0\n\n### Runtime\n\nBun\n\n### Runtime version\n\nBun 1.3.14\n\n### Transport\n\nHTTP (Streamable HTTP)\n\n### OS\n\nmacOS 26.1\n\n### Description\n\n`openaq_list_countries` takes no `limit` or `page`. A call without filters returns the whole [OpenAQ](https://openaq.org/) country catalog on both MCP surfaces, with each country's nested parameter list. `parametersId` doesn't bound it for common pollutants: `parametersId: 2` (PM2.5) matches 156 of 158…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/28",
      "PublishedAt": "2026-08-11T14:08:41.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(openaq_find_locations): meta.found is a per-page count, so exhausted pages report no coverage and later pages misreport totals",
      "Excerpt": "### Server version\n\n0.1.7\n\n### mcp-ts-core version\n\n0.11.0\n\n### Runtime\n\nBun\n\n### Runtime version\n\nBun 1.3.14\n\n### Transport\n\nHTTP (Streamable HTTP)\n\n### OS\n\nmacOS 26.1\n\n### Description\n\n`openaq_find_locations` reads OpenAQ's `meta.found` as a total, but on `/v3/locations` it counts only the page just returned: the row count on a partial page, and `\">limit\"` on any full page, even when nothing follows. So a page past the end throws `no_locations_found` with coverage recovery, a full last page…",
      "SourceUrl": "https://github.com/cyanheads/openaq-mcp-server/issues/27",
      "PublishedAt": "2026-08-11T14:08:21.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    }
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