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  "Slug": "clinicaltrialsgov-mcp-server",
  "Name": "clinicaltrialsgov-mcp-server",
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  "IssueTotal": 16,
  "Held": 16,
  "Issues": [
    {
      "Title": "feat(get_field_definitions): validate arguments against the selected mode",
      "Excerpt": "### Use case\n\n`clinicaltrials_get_field_definitions` requires an explicit `mode` (`search` | `drill` | `overview`), but the flat input schema still lets a caller attach fields that don't belong to the selected mode, and lets a whitespace-only `query` slip past the search-mode required-field check. Both gaps let a malformed call succeed with misleading or empty output instead of failing with an actionable error.\n\n### Current behavior\n\nReproduced against the live API on 2.9.5 (`d0f9224`):\n\n-…",
      "SourceUrl": "https://github.com/cyanheads/clinicaltrialsgov-mcp-server/issues/49",
      "PublishedAt": "2026-05-21T15:01:29.000Z",
      "State": "closed",
      "Comments": 5,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "feat(get_field_definitions): an omitted required argument escapes the typed error contract",
      "Excerpt": "`clinicaltrials_get_field_definitions` has three reachable input-error shapes per mode. Two carry a typed `data.reason` and a mirrored `Recovery:` line; the third — the required argument for the selected mode simply omitted — throws a plain `validationError` and carries neither.\n\nRelated: #49\n\n## Proposal\n\nGive the two `requires` throws a declared reason and a recovery hint, so every input rejection on this tool reaches the caller through the same typed contract the other reasons already use.…",
      "SourceUrl": "https://github.com/cyanheads/clinicaltrialsgov-mcp-server/issues/132",
      "PublishedAt": "2026-09-12T21:02:59.000Z",
      "State": "closed",
      "Comments": 2,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
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    {
      "Title": "bug(search_studies): ID-only searches that match nothing carry no notice",
      "Excerpt": "### Server version\n\n2.9.5\n\n### mcp-ts-core version\n\n0.12.8\n\n### Runtime\n\nBun\n\n### Runtime version\n\n1.4.0\n\n### Transport\n\nHTTP (Streamable HTTP)\n\n### Description\n\n`clinicaltrials_search_studies` builds its empty-result `notice` from `hasQuery` and `hasFilter` only — neither includes `nctIds`. An ID-targeted lookup that matches nothing returns `studies: []` with no signal that the ID filter was the reason, on either channel.\n\nTwo distinct cases, both unhandled today:\n\n- **ID-only** (`nctIds` and…",
      "SourceUrl": "https://github.com/cyanheads/clinicaltrialsgov-mcp-server/issues/130",
      "PublishedAt": "2026-09-12T18:58:46.000Z",
      "State": "closed",
      "Comments": 2,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "feat(get_study_record): return links to protocol and SAP documents",
      "Excerpt": "### Use case\n\nA reviewer can discover from `clinicaltrials_get_study_record` and the `clinicaltrials://{nctId}` resource that a study has a protocol, statistical analysis plan (SAP), or informed consent form (ICF), but each document entry only carries a bare `filename` (e.g. `Prot_000.pdf`). Neither surface provides a URL to actually retrieve the file, so a caller who wants to inspect the protocol has no path from the record to the document.\n\n### Proposed behavior\n\nAdd a `downloadUrl` field to…",
      "SourceUrl": "https://github.com/cyanheads/clinicaltrialsgov-mcp-server/issues/125",
      "PublishedAt": "2026-09-09T11:02:28.000Z",
      "State": "closed",
      "Comments": 2,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(get_field_values): cardinality ignores repeated ancestor objects",
      "Excerpt": "### Server version\n\n2.9.3\n\n### mcp-ts-core version\n\n0.12.5\n\n### Runtime\n\nBun\n\n### Runtime version\n\n1.4.0\n\n### Transport\n\nHTTP (Streamable HTTP)\n\n### Description\n\n`multiValued` is only inferred from a leaf node's own `type.endsWith(\"[]\")`. A scalar leaf nested inside a repeated (array-typed) ancestor object can also occur several times per study, so geography, intervention, and collaborator statistics lose their cardinality warning even though their counts sum above the study total exactly like…",
      "SourceUrl": "https://github.com/cyanheads/clinicaltrialsgov-mcp-server/issues/121",
      "PublishedAt": "2026-09-09T11:02:05.000Z",
      "State": "closed",
      "Comments": 2,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(get_field_values): numeric, date, and longest-string statistics are discarded",
      "Excerpt": "### Server version\n\n2.9.5\n\n### mcp-ts-core version\n\n0.12.8\n\n### Runtime\n\nBun\n\n### Runtime version\n\n1.4.0\n\n### Transport\n\nHTTP (Streamable HTTP)\n\n### Description\n\n`clinicaltrials_get_field_values` accepts INTEGER, NUMBER, and DATE fields, but the tool's `output` Zod schema (`get-field-values.tool.ts`) never declares their statistics fields. `ClinicalTrialsService.getFieldValues` returns the raw upstream JSON untouched (`fetchJson<FieldValueStats[]>` is a plain `res.json()` cast, no runtime…",
      "SourceUrl": "https://github.com/cyanheads/clinicaltrialsgov-mcp-server/issues/119",
      "PublishedAt": "2026-09-09T11:01:54.000Z",
      "State": "closed",
      "Comments": 2,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(get_study_results): shortened arm labels lose measurement identity",
      "Excerpt": "### Server version\n\n2.9.3\n\n### mcp-ts-core version\n\n0.12.5\n\n### Runtime\n\nBun\n\n### Runtime version\n\n1.4.0\n\n### Transport\n\nHTTP (Streamable HTTP)\n\n### Description\n\nFull results replace measurement group IDs with titles shortened to 40 characters. Different treatment arms can then have the same rendered label, leaving their counts and measurements ambiguous in `content[]` despite an intact structured response.\n\nRelated: #63 (all rows now render; the remaining defect is their association with…",
      "SourceUrl": "https://github.com/cyanheads/clinicaltrialsgov-mcp-server/issues/128",
      "PublishedAt": "2026-09-12T16:44:53.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(get_study_results): previous NCT IDs return false not-found results",
      "Excerpt": "### Server version\n\n2.9.3\n\n### mcp-ts-core version\n\n0.12.5\n\n### Runtime\n\nBun\n\n### Runtime version\n\n1.4.0\n\n### Transport\n\nHTTP (Streamable HTTP)\n\n### Description\n\n`clinicaltrials_get_study_results` reports an existing study as missing when given a previous (alias) NCT ID. Record lookup resolves the same identifier successfully, so following an older citation into posted results gives a false not-found answer.\n\nRoot cause confirmed by code and by live upstream calls:…",
      "SourceUrl": "https://github.com/cyanheads/clinicaltrialsgov-mcp-server/issues/127",
      "PublishedAt": "2026-09-12T16:44:51.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "top",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(get_study_results): summaries detach values from measurement context",
      "Excerpt": "### Server version\n\n2.9.3\n\n### mcp-ts-core version\n\n0.12.5\n\n### Runtime\n\nBun\n\n### Runtime version\n\n1.4.0\n\n### Transport\n\nHTTP (Streamable HTTP)\n\n### Description\n\n`clinicaltrials_get_study_results` summary mode projects one cell of an outcome measure — `classes[0].categories[0].measurements` — into `topStats`, and strips the labels and qualifiers that say what those numbers measure. Both channels then print a class- and category-specific value directly under the whole outcome title.\n\nThe…",
      "SourceUrl": "https://github.com/cyanheads/clinicaltrialsgov-mcp-server/issues/126",
      "PublishedAt": "2026-09-12T16:44:50.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "feat(get_study_results): retrieve capped results in bounded pages",
      "Excerpt": "### Use case\n\n`clinicaltrials_get_study_results` can bound a large record but cannot resume one. `outcomeLimit` and `adverseEventLimit` return a prefix; the only route to the rest is raising the limit or dropping it, which re-expands the whole response. Narrowing `sections` restarts each list at zero. A reviewer who has read outcomes 1–5 has no way to ask for 6–10 at the same bound.\n\nRelated: #97 (the caps shipped in 2.9.0 and work as designed — resumption was never part of them).\n\n### Proposed…",
      "SourceUrl": "https://github.com/cyanheads/clinicaltrialsgov-mcp-server/issues/124",
      "PublishedAt": "2026-09-09T11:02:22.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "feat(search_studies): validate geoFilter shape, ranges, and unit before querying",
      "Excerpt": "### Use case\n\n`clinicaltrials_search_studies`'s `geoFilter` schema field (`z.string().optional()`, `search-studies.tool.ts:382`) accepts any string. Its `.describe()` prose says a radius needs a `mi`/`km` suffix, but nothing enforces that, and ClinicalTrials.gov itself accepts a bare radius and silently reads it as **meters**. A caller who forgets the suffix gets an ordinary-looking empty result and \"try broadening your search\" guidance — not an error — for what is actually an input mistake.…",
      "SourceUrl": "https://github.com/cyanheads/clinicaltrialsgov-mcp-server/issues/123",
      "PublishedAt": "2026-09-09T11:02:16.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(search_studies): exhausted pages report an empty cohort",
      "Excerpt": "### Server version\n\n2.9.4\n\n### mcp-ts-core version\n\n0.12.8\n\n### Runtime\n\nBun\n\n### Runtime version\n\n1.4.0\n\n### Transport\n\nHTTP (Streamable HTTP)\n\n### Description\n\nAn empty continuation page says `No studies matched the search criteria.` even after earlier pages returned matching studies. The response omits the incoming cursor or an exhaustion notice, so it misstates pagination completion as a failed search.\n\nRelated: #98 (the first-page false-cursor suppression remains fixed).\n\n### Steps to…",
      "SourceUrl": "https://github.com/cyanheads/clinicaltrialsgov-mcp-server/issues/122",
      "PublishedAt": "2026-09-09T11:02:11.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(search_studies): rendered prefixes hide explicitly selected fields",
      "Excerpt": "### Server version\n\n2.9.3\n\n### mcp-ts-core version\n\n0.12.5\n\n### Runtime\n\nBun\n\n### Runtime version\n\n1.4.0\n\n### Transport\n\nHTTP (Streamable HTTP)\n\n### Description\n\nExplicit field selection still loses data from `content[]`: `SEARCH_RENDERED` excludes three whole subtrees (`enrollmentInfo`, `leadSponsor`, `locations`) from the field-dump fallback, but the dedicated renderers that are supposed to cover those subtrees only emit some of their leaves. Every leaf under an excluded prefix that the…",
      "SourceUrl": "https://github.com/cyanheads/clinicaltrialsgov-mcp-server/issues/120",
      "PublishedAt": "2026-09-09T11:02:00.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(find_eligible): multiword locations silently miss matching trials",
      "Excerpt": "### Server version\n\n2.9.4\n\n### mcp-ts-core version\n\n0.12.8\n\n### Runtime\n\nBun\n\n### Runtime version\n\n1.4.0\n\n### Transport\n\nHTTP (Streamable HTTP)\n\n### Description\n\n`clinicaltrials_find_eligible` joins location components into a comma-separated free-text query without quoting each component. Multiword locations can then fail to match a study that explicitly lists the requested site.\n\nThe same unquoted, comma-joined string is used for all three consumers in the handler — the main search's…",
      "SourceUrl": "https://github.com/cyanheads/clinicaltrialsgov-mcp-server/issues/118",
      "PublishedAt": "2026-09-09T11:01:49.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(search): OR advanced filters bypass phaseFilter",
      "Excerpt": "### Server version\n\n2.9.4\n\n### mcp-ts-core version\n\n0.12.8\n\n### Runtime\n\nBun\n\n### Runtime version\n\n1.4.0\n\n### Transport\n\nHTTP (Streamable HTTP)\n\n### Description\n\nCombining `phaseFilter` with an `advancedFilter` expression that carries a top-level `OR` (or any operator looser than `AND`) changes the intended cohort. `buildAdvancedFilter()` (`src/mcp-server/tools/utils/query-helpers.ts`) joins the phase clause and the caller's `advancedFilter` with `AND` but never groups the caller's operand:…",
      "SourceUrl": "https://github.com/cyanheads/clinicaltrialsgov-mcp-server/issues/117",
      "PublishedAt": "2026-09-09T11:01:44.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    },
    {
      "Title": "bug(get_study_results): NA medians become false not-reached results",
      "Excerpt": "### Server version\n\n2.9.3\n\n### mcp-ts-core version\n\n0.12.5\n\n### Runtime\n\nBun\n\n### Runtime version\n\n1.4.0\n\n### Transport\n\nHTTP (Streamable HTTP)\n\n### Description\n\n`displayMeasurementValue()` interprets every `NA`/`NR` measurement with `paramType: MEDIAN` as `not reached`. A median can be unavailable or inapplicable for reasons unrelated to follow-up duration. Summary mode also discards the measurement comment that explains the missing value.\n\nRelated: #76 (retaining missing-value arms was…",
      "SourceUrl": "https://github.com/cyanheads/clinicaltrialsgov-mcp-server/issues/116",
      "PublishedAt": "2026-09-09T11:01:39.000Z",
      "State": "closed",
      "Comments": 1,
      "Reporter": "Maintainer",
      "Rank": "recent",
      "Extractor": "github_issue"
    }
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