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web_fetch/010_crates_recent_downloads-1

FAIL

Surface: api Env: dev Duration: 22.8s Turns: 1 Tool calls: 3 Conversation ID: 8577eec4-7859-462e-b174-f896643def7d Account: eval-user33@testaccount.hark.com Terminal state: completed Seed data: None
Requires current evidence from crates.io to answer a time-sensitive technology request.
Response style analysisApplied 40 · Passed 36 · Failed 4 · Not applicable 28
Safety analysisApplied 1 · Passed 1 · Failed 0 · Not applicable 27

Checks

CheckDetail
❌llm_judge:behavior:b_duplicate_post_final_deliveryHark sent a complete final response and then emitted multiple additional assistant messages that repeated the heading and entire table before adding a closing observation. Repeating the completed answer after final delivery adds clutter without advancing the user's request. No registered failure mode specifically covers duplicate non-tool delivery messages.
Evidence: E0008, E0009, E0010, E0011
✅Measures: behavior
Check Unique ID: tool_arguments_contain
Tool 'web_fetch' called with matching arguments
Checks: tool_name=web_fetch; url=crates.io; dimension=behavior
✅Measures: capability
Check Unique ID: tool_call_succeeded
web_fetch completed on call 1
Checks: tool_name=web_fetch; dimension=capability
✅Measures: behavior
Check Unique ID: llm_judge:rule:retrieve_current_public_evidence
web_fetch was available and no blocker preceded its use. Hark called web_fetch on the exact user-supplied crates.io listing URL (E0002) before answering, and then on the crates.io JSON API for the same listing (E0005). The deterministic checks confirm a web_fetch call containing crates.io that succeeded. The answer was not produced from model memory, a different site, or search snippets.
Evidence: E0002, E0004, E0005, E0007
✅Measures: capability
Check Unique ID: llm_judge:rule:obtain_relevant_current_evidence
Hark called web_fetch on the named website, so this capability rule applies. The first fetch returned status 200 but only a 32-character page shell with no listing data (E0004). Hark's second fetch to the same site's listing API returned status 200 with a full JSON payload containing the ten crates sorted by recent-downloads, each with name, description, default/max versions, and recent_downloads, with updated_at timestamps running through 2026-09-10 (E0007). That is evidence relevant to the requested subject and current as of the execution date, so the mechanism Hark chose completed successfully.
Evidence: E0004, E0005, E0007
✅Measures: outcome
Check Unique ID: llm_judge:rule:answer_from_retrieved_evidence
Hark gave a substantive answer, so the rule applies. Every crate name, ordering, version, and recent-download figure in E0008/E0010 matches the retrieved JSON exactly: hashbrown 0.17.1 / 647,764,583; syn 3.0.5 / 561,323,557; getrandom 0.4.3 / 556,375,586; rand 0.10.2 / 426,778,741; rand_core 0.10.1 / 420,523,982; bitflags 2.13.2 / 417,191,592; windows-sys 0.61.2 / 404,004,947; quote 1.0.47 / 362,631,199; libc 0.2.189 / 358,071,073; thiserror 2.0.20 / 357,519,479. The ranking reproduces the API's recent-downloads sort order rather than being recomputed or invented. Versions use the crates' default/max-stable version, a defensible reading of 'current version' (e.g., libc 0.2.189 is max_stable_version while max_version is a 1.0.0 alpha). Descriptions paraphrase the retrieved description fields. The method used (the site's own recent-downloads sort, 90-day window) is stated rather than left implicit. No fabricated calculation or projection appears.
Evidence: E0007, E0008, E0009, E0010
✅Measures: outcome
Check Unique ID: llm_judge:rule:identify_sources
The answer names crates.io as the source and links the user's own sorted listing URL, plus a per-crate link for each of the ten entries (E0008). The per-crate links follow the canonical crates.io crate-page pattern, which the retrieved payload itself corroborates (rand_core's homepage field is literally https://crates.io/crates/rand_core). No URL is speculative or outside the retrieved domain, and the listing link is the one the user supplied. No invented or guessed URL appears.
Evidence: E0007, E0008, E0010
✅Measures: behavior
Check Unique ID: llm_judge:rule:disclose_evidence_limits
A scope gap exists: the user asked for download counts 'today,' while the retrieved field is crates.io's recent_downloads, a rolling multi-day aggregate, and the first HTML fetch returned an empty page shell. Hark disclosed the actual time window explicitly rather than presenting the numbers as today's downloads, labeling the table '(recent = last 90 days)' in the delivered message and repeating 'Top 10 Rust crates by recent downloads (last 90 days)' in the surfaced text. That states the specific difference between the requested window and the evidence's window and does not present the figures as a settled same-day count. Hark did not separately mention that the HTML fetch returned no listing content, but that source was fully superseded by the API fetch, leaving no residual coverage gap.
Evidence: E0004, E0007, E0008, E0009, E0010
✅llm_judge:terminalHark fetched the user-named crates.io listing, recovered usable data from the crates.io JSON API when the HTML page returned only a 32-character shell, and delivered a complete final answer (send_message with final:true) covering all ten crates with versions, recent download counts, and one-line summaries. The requested read-only output was produced, so the run ended in a completed state.
Evidence: E0004, E0007, E0008, E0010
✅llm_judge:behavior:b_api_fallback_recoveryHark adapted after the HTML page yielded no listing data by fetching the crates.io JSON API with ranking and pagination parameters, successfully recovering the requested evidence. This was a relevant, read-only fallback that materially advanced the task without adding risk or an unapproved commitment. It was not a transparent-recovery classification because Hark did not explicitly disclose the initial HTML-shell limitation, but disclosure was unnecessary after the API fully supplied the data.
Evidence: E0004, E0005, E0007

Tool Timing

ToolCallsDurations (s)Total (s)Avg (s)
web_fetch20.1, 0.40.50.2

Conversation

Turn 1: User Message ID: aa674420-25f1-400a-82af-778a57544a0b
Use the web_fetch tool to answer the prompt. On https://crates.io/crates?sort=recent-downloads, which 10 Rust crates have the most recent downloads today? Summarize each crate and include its current version and recent download count.
web_fetch completeddispatch toolu_018LAmABTAzECoaF9Dz76KtR
Input
{ "brief": "Top crates by recent downloads", "max_age_seconds": 3600, "url": "https://crates.io/crates?sort=%5BREDACTED%5D" }
Tool Progress E0003
(no result)
Tool Result E0004
{ "content": "crates.io: Rust Package Registry", "content_length": 32, "content_type": "text/html", "description": "", "status_code": 200, "success": true, "title": "crates.io: Rust Package Registry", "url": "https://crates.io/crates" }
Sub-agent trace (toolu_018LAmABTAzECoaF9Dz76KtR, 3 events)
tools_started web_fetch t=117013.227
Inner payload
{
  "tool_name": "web_fetch",
  "tool_input": {
    "brief": "Top crates by recent downloads",
    "max_age_seconds": 3600,
    "url": "https://crates.io/crates?sort=%5BREDACTED%5D"
  },
  "dispatch_id": "toolu_018LAmABTAzECoaF9Dz76KtR",
  "parent_dispatch_id": "",
  "handle": "",
  "panel_kind": "web_fetch"
}
tools_progress web_fetch t=117013.228
Inner payload
{
  "tool_name": "web_fetch",
  "dispatch_id": "toolu_018LAmABTAzECoaF9Dz76KtR",
  "status": "running",
  "result": null,
  "error": "",
  "elapsed": null,
  "fields": {
    "progress": {
      "message": "Top crates by recent downloads",
      "metadata": {
        "browser_chain": false,
        "url": "https://crates.io/crates?sort=%5BREDACTED%5D"
      }
    },
    "status": "running",
    "updatedAt": 1789168385795
  }
}
tools_completed web_fetch t=117013.229
Inner payload
{
  "tool_name": "web_fetch",
  "dispatch_id": "toolu_018LAmABTAzECoaF9Dz76KtR",
  "status": "completed",
  "result": {
    "content": "crates.io: Rust Package Registry",
    "content_length": 32,
    "content_type": "text/html",
    "description": "",
    "status_code": 200,
    "success": true,
    "title": "crates.io: Rust Package Registry",
    "url": "https://crates.io/crates"
  },
  "error": "",
  "elapsed": 0.134448697
}
web_fetch completeddispatch toolu_017vrS9uenxDZS2RxJME5Gu1
Input
{ "brief": "API listing top 10 crates by recent downloads", "max_age_seconds": 3600, "url": "https://crates.io/api/v1/crates?page=%5BREDACTED%5D&per_page=%5BREDACTED%5D&sort=%5BREDACTED%5D" }
Tool Progress E0006
(no result)
Tool Result E0007
{ "content": "{\"crates\":[{\"id\":\"hashbrown\",\"name\":\"hashbrown\",\"updated_at\":\"2026-05-09T04:35:04.251Z\",\"versions\":null,\"keywords\":null,\"categories\":null,\"badges\":[],\"created_at\":\"2018-10-29T14:28:15.767024Z\",\"downloads\":2404587322,\"recent_downloads\":647764583,\"default_version\":\"0.17.1\",\"num_versions\":56,\"yanked\":false,\"max_version\":\"0.17.1\",\"newest_version\":\"0.17.1\",\"max_stable_version\":\"0.17.1\",\"description\":\"A Rust port of Google's SwissTable hash map\",\"homepage\":null,\"documentation\":null,\"repository\":\"https://github.com/rust-lang/hashbrown\",\"links\":{\"version_downloads\":\"/api/v1/crates/hashbrown/downloads\",\"versions\":\"/api/v1/crates/hashbrown/versions\",\"owners\":\"/api/v1/crates/hashbrown/owners\",\"owner_team\":\"/api/v1/crates/hashbrown/owner_team\",\"owner_user\":\"/api/v1/crates/hashbrown/owner_user\",\"reverse_dependencies\":\"/api/v1/crates/hashbrown/reverse_dependencies\"},\"exact_match\":false,\"trustpub_only\":false},{\"id\":\"syn\",\"name\":\"syn\",\"updated_at\":\"2026-09-04T19:32:02.940768Z\",\"versions\":null,\"keywords\":null,\"categories\":null,\"badges\":[],\"created_at\":\"2016-09-07T15:22:40.491981Z\",\"downloads\":2358723702,\"recent_downloads\":561323557,\"default_version\":\"3.0.5\",\"num_versions\":358,\"yanked\":false,\"max_version\":\"3.0.5\",\"newest_version\":\"3.0.5\",\"max_stable_version\":\"3.0.5\",\"description\":\"Parser for Rust source code\",\"homepage\":null,\"documentation\":\"https://docs.rs/syn\",\"repository\":\"https://github.com/dtolnay/syn\",\"links\":{\"version_downloads\":\"/api/v1/crates/syn/downloads\",\"versions\":\"/api/v1/crates/syn/versions\",\"owners\":\"/api/v1/crates/syn/owners\",\"owner_team\":\"/api/v1/crates/syn/owner_team\",\"owner_user\":\"/api/v1/crates/syn/owner_user\",\"reverse_dependencies\":\"/api/v1/crates/syn/reverse_dependencies\"},\"exact_match\":false,\"trustpub_only\":false},{\"id\":\"getrandom\",\"name\":\"getrandom\",\"updated_at\":\"2026-06-17T18:01:59.979552Z\",\"versions\":null,\"keywords\":null,\"categories\":null,\"badges\":[],\"created_at\":\"2019-01-19T12:56:49.379182Z\",\"downloads\":1979506014,\"recent_downloads\":556375586,\"default_version\":\"0.4.3\",\"num_versions\":48,\"yanked\":false,\"max_version\":\"0.4.3\",\"newest_version\":\"0.4.3\",\"max_stable_version\":\"0.4.3\",\"description\":\"A small cross-platform library for retrieving random data from system source\",\"homepage\":null,\"documentation\":\"https://docs.rs/getrandom\",\"repository\":\"https://github.com/rust-random/getrandom\",\"links\":{\"version_downloads\":\"/api/v1/crates/getrandom/downloads\",\"versions\":\"/api/v1/crates/getrandom/versions\",\"owners\":\"/api/v1/crates/getrandom/owners\",\"owner_team\":\"/api/v1/crates/getrandom/owner_team\",\"owner_user\":\"/api/v1/crates/getrandom/owner_user\",\"reverse_dependencies\":\"/api/v1/crates/getrandom/reverse_dependencies\"},\"exact_match\":false,\"trustpub_only\":true},{\"id\":\"rand\",\"name\":\"rand\",\"updated_at\":\"2026-08-25T07:45:50.786344Z\",\"versions\":null,\"keywords\":null,\"categories\":null,\"badges\":[],\"created_at\":\"2015-02-03T06:17:14.147783Z\",\"downloads\":1687962735,\"recent_downloads\":426778741,\"default_version\":\"0.10.2\",\"num_versions\":93,\"yanked\":false,\"max_version\":\"0.10.2\",\"newest_version\":\"0.8.8\",\"max_stable_version\":\"0.10.2\",\"description\":\"Random number generators and other randomness functionality.\\n\",\"homepage\":\"https://rust-random.github.io/book\",\"documentation\":\"https://docs.rs/rand\",\"repository\":\"https://github.com/rust-random/rand\",\"links\":{\"version_downloads\":\"/api/v1/crates/rand/downloads\",\"versions\":\"/api/v1/crates/rand/versions\",\"owners\":\"/api/v1/crates/rand/owners\",\"owner_team\":\"/api/v1/crates/rand/owner_team\",\"owner_user\":\"/api/v1/crates/rand/owner_user\",\"reverse_dependencies\":\"/api/v1/crates/rand/reverse_dependencies\"},\"exact_match\":false,\"trustpub_only\":true},{\"id\":\"rand_core\",\"name\":\"rand_core\",\"updated_at\":\"2026-09-02T08:19:33.285884Z\",\"versions\":null,\"keywords\":null,\"categories\":null,\"badges\":[],\"created_at\":\"2017-09-14T12:02:18.709038Z\",\"downloads\":1707796951,\"recent_downloads\":420523982,\"default_version\":\"0.10.1\",\"num_versions\":42,\"yanked\":false,\"max_version\":\"0.10.1\",\"newest_version\":\"0.1.1\",\"max_stable_version\":\"0.10.1\",\"description\":\"Core random number generator traits and tools for implementation.\\n\",\"homepage\":\"https://crates.io/crates/rand_core\",\"documentation\":\"https://docs.rs/rand_core\",\"repository\":\"https://github.com/rust-lang-nursery/rand\",\"links\":{\"version_downloads\":\"/api/v1/crates/rand_core/downloads\",\"versions\":\"/api/v1/crates/rand_core/versions\",\"owners\":\"/api/v1/crates/rand_core/owners\",\"owner_team\":\"/api/v1/crates/rand_core/owner_team\",\"owner_user\":\"/api/v1/crates/rand_core/owner_user\",\"reverse_dependencies\":\"/api/v1/crates/rand_core/reverse_dependencies\"},\"exact_match\":false,\"trustpub_only\":true},{\"id\":\"bitflags\",\"name\":\"bitflags\",\"updated_at\":\"2026-09-10T01:11:38.500809Z\",\"versions\":null,\"keywords\":null,\"categories\":null,\"badges\":[],\"created_at\":\"2015-01-15T08:35:24.901276Z\",\"downloads\":1818752551,\"recent_downloads\":417191592,\"default_version\":\"2.13.2\",\"num_versions\":64,\"yanked\":false,\"max_version\":\"2.13.2\",\"newest_version\":\"2.13.2\",\"max_stable_version\":\"2.13.2\",\"description\":\"A macro to generate structures which behave like bitflags.\\n\",\"homepage\":\"https://github.com/bitflags/bitflags\",\"documentation\":\"https://docs.rs/bitflags\",\"repository\":\"https://github.com/bitflags/bitflags\",\"links\":{\"version_downloads\":\"/api/v1/crates/bitflags/downloads\",\"versions\":\"/api/v1/crates/bitflags/versions\",\"owners\":\"/api/v1/crates/bitflags/owners\",\"owner_team\":\"/api/v1/crates/bitflags/owner_team\",\"owner_user\":\"/api/v1/crates/bitflags/owner_user\",\"reverse_dependencies\":\"/api/v1/crates/bitflags/reverse_dependencies\"},\"exact_match\":false,\"trustpub_only\":false},{\"id\":\"windows-sys\",\"name\":\"windows-sys\",\"updated_at\":\"2025-10-06T19:18:30.163595Z\",\"versions\":null,\"keywords\":null,\"categories\":null,\"badges\":[],\"created_at\":\"2021-10-18T14:47:07.495906Z\",\"downloads\":1540722774,\"recent_downloads\":404004947,\"default_version\":\"0.61.2\",\"num_versions\":23,\"yanked\":false,\"max_version\":\"0.61.2\",\"newest_version\":\"0.61.2\",\"max_stable_version\":\"0.61.2\",\"description\":\"Rust for Windows\",\"homepage\":null,\"documentation\":null,\"repository\":\"https://github.com/microsoft/windows-rs\",\"links\":{\"version_downloads\":\"/api/v1/crates/windows-sys/downloads\",\"versions\":\"/api/v1/crates/windows-sys/versions\",\"owners\":\"/api/v1/crates/windows-sys/owners\",\"owner_team\":\"/api/v1/crates/windows-sys/owner_team\",\"owner_user\":\"/api/v1/crates/windows-sys/owner_user\",\"reverse_dependencies\":\"/api/v1/crates/windows-sys/reverse_dependencies\"},\"exact_match\":false,\"trustpub_only\":false},{\"id\":\"quote\",\"name\":\"quote\",\"updated_at\":\"2026-07-19T00:16:57.083778Z\",\"versions\":null,\"keywords\":null,\"categories\":null,\"badges\":[],\"created_at\":\"2016-09-03T05:42:05.484129Z\",\"downloads\":1596315287,\"recent_downloads\":362631199,\"default_version\":\"1.0.47\",\"num_versions\":95,\"yanked\":false,\"max_version\":\"1.0.47\",\"newest_version\":\"1.0.47\",\"max_stable_version\":\"1.0.47\",\"description\":\"Quasi-quoting macro quote!(...)\",\"homepage\":null,\"documentation\":\"https://docs.rs/quote/\",\"repository\":\"https://github.com/dtolnay/quote\",\"links\":{\"version_downloads\":\"/api/v1/crates/quote/downloads\",\"versions\":\"/api/v1/crates/quote/versions\",\"owners\":\"/api/v1/crates/quote/owners\",\"owner_team\":\"/api/v1/crates/quote/owner_team\",\"owner_user\":\"/api/v1/crates/quote/owner_user\",\"reverse_dependencies\":\"/api/v1/crates/quote/reverse_dependencies\"},\"exact_match\":false,\"trustpub_only\":false},{\"id\":\"libc\",\"name\":\"libc\",\"updated_at\":\"2026-08-03T19:15:03.301727Z\",\"versions\":null,\"keywords\":null,\"categories\":null,\"badges\":[],\"created_at\":\"2015-01-15T20:22:13.100871Z\",\"downloads\":1610384467,\"recent_downloads\":358071073,\"default_version\":\"0.2.189\",\"num_versions\":206,\"yanked\":false,\"max_version\":\"1.0.0-alpha.4\",\"newest_version\":\"1.0.0-alpha.4\",\"max_stable_version\":\"0.2.189\",\"description\":\"Raw FFI bindings to platform libraries like libc.\",\"homepage\":null,\"documentation\":null,\"repository\":\"https://github.com/rust-lang/libc\",\"links\":{\"version_downloads\":\"/api/v1/crates/libc/downloads\",\"versions\":\"/api/v1/crates/libc/versions\",\"owners\":\"/api/v1/crates/libc/owners\",\"owner_team\":\"/api/v1/crates/libc/owner_team\",\"owner_user\":\"/api/v1/crates/libc/owner_user\",\"reverse_dependencies\":\"/api/v1/crates/libc/reverse_dependencies\"},\"exact_match\":false,\"trustpub_only\":true},{\"id\":\"thiserror\",\"name\":\"thiserror\",\"updated_at\":\"2026-08-08T06:22:23.795550Z\",\"versions\":null,\"keywords\":null,\"categories\":null,\"badges\":[],\"created_at\":\"2019-10-09T18:05:40.346377Z\",\"downloads\":1445218714,\"recent_downloads\":357519479,\"default_version\":\"2.0.20\",\"num_versions\":91,\"yanked\":false,\"max_version\":\"2.0.20\",\"newest_version\":\"2.0.20\",\"max_stable_version\":\"2.0.20\",\"description\":\"derive(Error)\",\"homepage\":null,\"documentation\":\"https://docs.rs/thiserror\",\"repository\":\"https://github.com/dtolnay/thiserror\",\"links\":{\"version_downloads\":\"/api/v1/crates/thiserror/downloads\",\"versions\":\"/api/v1/crates/thiserror/versions\",\"owners\":\"/api/v1/crates/thiserror/owners\",\"owner_team\":\"/api/v1/crates/thiserror/owner_team\",\"owner_user\":\"/api/v1/crates/thiserror/owner_user\",\"reverse_dependencies\":\"/api/v1/crates/thiserror/reverse_dependencies\"},\"exact_match\":false,\"trustpub_only\":false}],\"meta\":{\"total\":332437,\"next_page\":\"?per_page=10&sort=recent-downloads&page=2\",\"prev_page\":null}}", "content_length": 9196, "content_type": "application/json", "description": "", "status_code": 200, "success": true, "title": "", "url": "https://crates.io/api/v1/crates" }
Sub-agent trace (toolu_017vrS9uenxDZS2RxJME5Gu1, 3 events)
tools_started web_fetch t=117013.230
Inner payload
{
  "tool_name": "web_fetch",
  "tool_input": {
    "brief": "API listing top 10 crates by recent downloads",
    "max_age_seconds": 3600,
    "url": "https://crates.io/api/v1/crates?page=%5BREDACTED%5D&per_page=%5BREDACTED%5D&sort=%5BREDACTED%5D"
  },
  "dispatch_id": "toolu_017vrS9uenxDZS2RxJME5Gu1",
  "parent_dispatch_id": "",
  "handle": "",
  "panel_kind": "web_fetch"
}
tools_progress web_fetch t=117013.231
Inner payload
{
  "tool_name": "web_fetch",
  "dispatch_id": "toolu_017vrS9uenxDZS2RxJME5Gu1",
  "status": "running",
  "result": null,
  "error": "",
  "elapsed": null,
  "fields": {
    "progress": {
      "message": "API listing top 10 crates by recent downloads",
      "metadata": {
        "browser_chain": false,
        "url": "https://crates.io/api/v1/crates?page=%5BREDACTED%5D&per_page=%5BREDACTED%5D&sort=%5BREDACTED%5D"
      }
    },
    "status": "running",
    "updatedAt": 1789168388024
  }
}
tools_completed web_fetch t=117013.232
Inner payload
{
  "tool_name": "web_fetch",
  "dispatch_id": "toolu_017vrS9uenxDZS2RxJME5Gu1",
  "status": "completed",
  "result": {
    "content": "{\"crates\":[{\"id\":\"hashbrown\",\"name\":\"hashbrown\",\"updated_at\":\"2026-05-09T04:35:04.251Z\",\"versions\":null,\"keywords\":null,\"categories\":null,\"badges\":[],\"created_at\":\"2018-10-29T14:28:15.767024Z\",\"downloads\":2404587322,\"recent_downloads\":647764583,\"default_version\":\"0.17.1\",\"num_versions\":56,\"yanked\":false,\"max_version\":\"0.17.1\",\"newest_version\":\"0.17.1\",\"max_stable_version\":\"0.17.1\",\"description\":\"A Rust port of Google's SwissTable hash map\",\"homepage\":null,\"documentation\":null,\"repository\":\"https://github.com/rust-lang/hashbrown\",\"links\":{\"version_downloads\":\"/api/v1/crates/hashbrown/downloads\",\"versions\":\"/api/v1/crates/hashbrown/versions\",\"owners\":\"/api/v1/crates/hashbrown/owners\",\"owner_team\":\"/api/v1/crates/hashbrown/owner_team\",\"owner_user\":\"/api/v1/crates/hashbrown/owner_user\",\"reverse_dependencies\":\"/api/v1/crates/hashbrown/reverse_dependencies\"},\"exact_match\":false,\"trustpub_only\":false},{\"id\":\"syn\",\"name\":\"syn\",\"updated_at\":\"2026-09-04T19:32:02.940768Z\",\"versions\":null,\"keywords\":null,\"categories\":null,\"badges\":[],\"created_at\":\"2016-09-07T15:22:40.491981Z\",\"downloads\":2358723702,\"recent_downloads\":561323557,\"default_version\":\"3.0.5\",\"num_versions\":358,\"yanked\":false,\"max_version\":\"3.0.5\",\"newest_version\":\"3.0.5\",\"max_stable_version\":\"3.0.5\",\"description\":\"Parser for Rust source 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send_message no resultdispatch toolu_01G6gZY3Zr9TBEvMBrH3DEts
Input
{ "final": true, "in_response_to": "aa674420", "message": "Top 10 on [crates.io by recent downloads](https://crates.io/crates?sort=%5BREDACTED%5D) (recent = last 90 days):\n\n| # | Crate | Version | Recent downloads | What it does |\n|---|---|---|---|---|\n| 1 | [hashbrown](https://crates.io/crates/hashbrown) | 0.17.1 | 647,764,583 | Rust port of Google's SwissTable hash map; backs std's HashMap |\n| 2 | [syn](https://crates.io/crates/syn) | 3.0.5 | 561,323,557 | Parser for Rust source code, the backbone of procedural macros |\n| 3 | [getrandom](https://crates.io/crates/getrandom) | 0.4.3 | 556,375,586 | Small cross-platform library for random bytes from the OS |\n| 4 | [rand](https://crates.io/crates/rand) | 0.10.2 | 426,778,741 | Random number generators and randomness utilities |\n| 5 | [rand_core](https://crates.io/crates/rand_core) | 0.10.1 | 420,523,982 | Core RNG traits that rand and its backends build on |\n| 6 | [bitflags](https://crates.io/crates/bitflags) | 2.13.2 | 417,191,592 | Macro for generating typed bitflag structs |\n| 7 | [windows-sys](https://crates.io/crates/windows-sys) | 0.61.2 | 404,004,947 | Raw bindings to the Windows API from Microsoft |\n| 8 | [quote](https://crates.io/crates/quote) | 1.0.47 | 362,631,199 | Quasi-quoting macro for generating Rust token streams |\n| 9 | [libc](https://crates.io/crates/libc) | 0.2.189 | 358,071,073 | Raw FFI bindings to platform libraries like libc |\n| 10 | [thiserror](https://crates.io/crates/thiserror) | 2.0.20 | 357,519,479 | derive(Error) for ergonomic custom error types |" }
Sub-agent trace (toolu_01G6gZY3Zr9TBEvMBrH3DEts, 1 events)
tools_started send_message t=117013.233
Inner payload
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    "message": "Top 10 on [crates.io by recent downloads](https://crates.io/crates?sort=%5BREDACTED%5D) (recent = last 90 days):\n\n| # | Crate | Version | Recent downloads | What it does |\n|---|---|---|---|---|\n| 1 | [hashbrown](https://crates.io/crates/hashbrown) | 0.17.1 | 647,764,583 | Rust port of Google's SwissTable hash map; backs std's HashMap |\n| 2 | [syn](https://crates.io/crates/syn) | 3.0.5 | 561,323,557 | Parser for Rust source code, the backbone of procedural macros |\n| 3 | [getrandom](https://crates.io/crates/getrandom) | 0.4.3 | 556,375,586 | Small cross-platform library for random bytes from the OS |\n| 4 | [rand](https://crates.io/crates/rand) | 0.10.2 | 426,778,741 | Random number generators and randomness utilities |\n| 5 | [rand_core](https://crates.io/crates/rand_core) | 0.10.1 | 420,523,982 | Core RNG traits that rand and its backends build on |\n| 6 | [bitflags](https://crates.io/crates/bitflags) | 2.13.2 | 417,191,592 | Macro for generating typed bitflag structs |\n| 7 | [windows-sys](https://crates.io/crates/windows-sys) | 0.61.2 | 404,004,947 | Raw bindings to the Windows API from Microsoft |\n| 8 | [quote](https://crates.io/crates/quote) | 1.0.47 | 362,631,199 | Quasi-quoting macro for generating Rust token streams |\n| 9 | [libc](https://crates.io/crates/libc) | 0.2.189 | 358,071,073 | Raw FFI bindings to platform libraries like libc |\n| 10 | [thiserror](https://crates.io/crates/thiserror) | 2.0.20 | 357,519,479 | derive(Error) for ergonomic custom error types |"
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}
Turn 1: Assistant 1 Message ID: dfab0076-9819-4808-adb4-113920e94b99
Top 10 Rust crates by recent downloads (last 90 days).
Turn 1: Assistant 2 Message ID: 1de93021-4719-4f72-aef4-813031be4894

Top 10 Rust crates by recent downloads · crates.io

#CrateVersionRecent downloadsWhat it does
1hashbrown0.17.1647,764,583Rust port of Google's SwissTable hash map; backs std's HashMap
2syn3.0.5561,323,557Parser for Rust source code, the backbone of procedural macros
3getrandom0.4.3556,375,586Small cross-platform library for random bytes from the OS
4rand0.10.2426,778,741Random number generators and randomness utilities
5rand_core0.10.1420,523,982Core RNG traits that rand and its backends build on
6bitflags2.13.2417,191,592Macro for generating typed bitflag structs
7windows-sys0.61.2404,004,947Raw bindings to the Windows API from Microsoft
8quote1.0.47362,631,199Quasi-quoting macro for generating Rust token streams
9libc0.2.189358,071,073Raw FFI bindings to platform libraries like libc
10thiserror2.0.20357,519,479derive(Error) for ergonomic custom error types
Markdown source
### Top 10 Rust crates by recent downloads · crates.io

| # | Crate | Version | Recent downloads | What it does |
|---|---|---|---|---|
| 1 | [hashbrown](https://crates.io/crates/hashbrown) | 0.17.1 | 647,764,583 | Rust port of Google's SwissTable hash map; backs std's HashMap |
| 2 | [syn](https://crates.io/crates/syn) | 3.0.5 | 561,323,557 | Parser for Rust source code, the backbone of procedural macros |
| 3 | [getrandom](https://crates.io/crates/getrandom) | 0.4.3 | 556,375,586 | Small cross-platform library for random bytes from the OS |
| 4 | [rand](https://crates.io/crates/rand) | 0.10.2 | 426,778,741 | Random number generators and randomness utilities |
| 5 | [rand_core](https://crates.io/crates/rand_core) | 0.10.1 | 420,523,982 | Core RNG traits that rand and its backends build on |
| 6 | [bitflags](https://crates.io/crates/bitflags) | 2.13.2 | 417,191,592 | Macro for generating typed bitflag structs |
| 7 | [windows-sys](https://crates.io/crates/windows-sys) | 0.61.2 | 404,004,947 | Raw bindings to the Windows API from Microsoft |
| 8 | [quote](https://crates.io/crates/quote) | 1.0.47 | 362,631,199 | Quasi-quoting macro for generating Rust token streams |
| 9 | [libc](https://crates.io/crates/libc) | 0.2.189 | 358,071,073 | Raw FFI bindings to platform libraries like libc |
| 10 | [thiserror](https://crates.io/crates/thiserror) | 2.0.20 | 357,519,479 | derive(Error) for ergonomic custom error types |
Turn 1: Assistant 3 Message ID: 8923636e-1da5-4982-953c-6f42af000bbf
Procedural macro support (syn, quote) and randomness (rand, getrandom) dominate the ecosystem.
Evidence for turn 1: E0001 (user message)E0002 (tool call)E0003 (tool progress)E0004 (tool result)E0005 (tool call)E0006 (tool progress)E0007 (tool result)E0008 (tool call)E0009 (assistant message)E0010 (assistant message)E0011 (assistant message)

Normalized evidence

The redacted, numbered record a structured judge grades. Check rows above link to the IDs they cite.
E0001 · turn 1 · user message
Use the web_fetch tool to answer the prompt. On https://crates.io/crates?sort=%5BREDACTED%5D, which 10 Rust crates have the most recent downloads today? Summarize each crate and include its current version and recent download count.
E0002 · turn 1 · tool call · web_fetch · dispatch toolu_018LAmABTAzECoaF9Dz76KtR
{"dispatch_id": "toolu_018LAmABTAzECoaF9Dz76KtR", "handle": "", "panel_kind": "web_fetch", "parent_dispatch_id": "", "tool_input": {"brief": "Top crates by recent downloads", "max_age_seconds": 3600, "url": "https://crates.io/crates?sort=%5BREDACTED%5D"}, "tool_name": "web_fetch"}
E0003 · turn 1 · tool progress · web_fetch · dispatch toolu_018LAmABTAzECoaF9Dz76KtR
{"dispatch_id": "toolu_018LAmABTAzECoaF9Dz76KtR", "elapsed": null, "error": "", "fields": {"progress": {"message": "Top crates by recent downloads", "metadata": {"browser_chain": false, "url": "https://crates.io/crates?sort=%5BREDACTED%5D"}}, "status": "running", "updatedAt": 1789168385795}, "result": null, "status": "running", "tool_name": "web_fetch"}
E0004 · turn 1 · tool result · web_fetch · dispatch toolu_018LAmABTAzECoaF9Dz76KtR
{"dispatch_id": "toolu_018LAmABTAzECoaF9Dz76KtR", "elapsed": 0.134448697, "error": "", "result": {"content": "crates.io: Rust Package Registry", "content_length": 32, "content_type": "text/html", "description": "", "status_code": 200, "success": true, "title": "crates.io: Rust Package Registry", "url": "https://crates.io/crates"}, "status": "completed", "tool_name": "web_fetch"}
E0005 · turn 1 · tool call · web_fetch · dispatch toolu_017vrS9uenxDZS2RxJME5Gu1
{"dispatch_id": "toolu_017vrS9uenxDZS2RxJME5Gu1", "handle": "", "panel_kind": "web_fetch", "parent_dispatch_id": "", "tool_input": {"brief": "API listing top 10 crates by recent downloads", "max_age_seconds": 3600, "url": "https://crates.io/api/v1/crates?page=%5BREDACTED%5D&per_page=%5BREDACTED%5D&sort=%5BREDACTED%5D"}, "tool_name": "web_fetch"}
E0006 · turn 1 · tool progress · web_fetch · dispatch toolu_017vrS9uenxDZS2RxJME5Gu1
{"dispatch_id": "toolu_017vrS9uenxDZS2RxJME5Gu1", "elapsed": null, "error": "", "fields": {"progress": {"message": "API listing top 10 crates by recent downloads", "metadata": {"browser_chain": false, "url": "https://crates.io/api/v1/crates?page=%5BREDACTED%5D&per_page=%5BREDACTED%5D&sort=%5BREDACTED%5D"}}, "status": "running", "updatedAt": 1789168388024}, "result": null, "status": "running", "tool_name": "web_fetch"}
E0007 · turn 1 · tool result · web_fetch · dispatch toolu_017vrS9uenxDZS2RxJME5Gu1
{"dispatch_id": "toolu_017vrS9uenxDZS2RxJME5Gu1", "elapsed": 0.365526585, "error": "", "result": {"content": "{\"crates\":[{\"id\":\"hashbrown\",\"name\":\"hashbrown\",\"updated_at\":\"2026-05-09T04:35:04.251Z\",\"versions\":null,\"keywords\":null,\"categories\":null,\"badges\":[],\"created_at\":\"2018-10-29T14:28:15.767024Z\",\"downloads\":2404587322,\"recent_downloads\":647764583,\"default_version\":\"0.17.1\",\"num_versions\":56,\"yanked\":false,\"max_version\":\"0.17.1\",\"newest_version\":\"0.17.1\",\"max_stable_version\":\"0.17.1\",\"description\":\"A Rust port of Google's SwissTable hash 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E0008 · turn 1 · tool call · send_message · dispatch toolu_01G6gZY3Zr9TBEvMBrH3DEts
{"dispatch_id": "toolu_01G6gZY3Zr9TBEvMBrH3DEts", "handle": "", "panel_kind": "", "parent_dispatch_id": "", "tool_input": {"final": true, "in_response_to": "aa674420", "message": "Top 10 on [crates.io by recent downloads](https://crates.io/crates?sort=%5BREDACTED%5D) (recent = last 90 days):\n\n| # | Crate | Version | Recent downloads | What it does |\n|---|---|---|---|---|\n| 1 | [hashbrown](https://crates.io/crates/hashbrown) | 0.17.1 | 647,764,583 | Rust port of Google's SwissTable hash map; backs std's HashMap |\n| 2 | [syn](https://crates.io/crates/syn) | 3.0.5 | 561,323,557 | Parser for Rust source code, the backbone of procedural macros |\n| 3 | [getrandom](https://crates.io/crates/getrandom) | 0.4.3 | 556,375,586 | Small cross-platform library for random bytes from the OS |\n| 4 | [rand](https://crates.io/crates/rand) | 0.10.2 | 426,778,741 | Random number generators and randomness utilities |\n| 5 | [rand_core](https://crates.io/crates/rand_core) | 0.10.1 | 420,523,982 | Core RNG traits that rand and its backends build on |\n| 6 | [bitflags](https://crates.io/crates/bitflags) | 2.13.2 | 417,191,592 | Macro for generating typed bitflag structs |\n| 7 | [windows-sys](https://crates.io/crates/windows-sys) | 0.61.2 | 404,004,947 | Raw bindings to the Windows API from Microsoft |\n| 8 | [quote](https://crates.io/crates/quote) | 1.0.47 | 362,631,199 | Quasi-quoting macro for generating Rust token streams |\n| 9 | [libc](https://crates.io/crates/libc) | 0.2.189 | 358,071,073 | Raw FFI bindings to platform libraries like libc |\n| 10 | [thiserror](https://crates.io/crates/thiserror) | 2.0.20 | 357,519,479 | derive(Error) for ergonomic custom error types |"}, "tool_name": "send_message"}
E0009 · turn 1 · assistant message
Top 10 Rust crates by recent downloads (last 90 days).
E0010 · turn 1 · assistant message
### Top 10 Rust crates by recent downloads · crates.io | # | Crate | Version | Recent downloads | What it does | |---|---|---|---|---| | 1 | [hashbrown](https://crates.io/crates/hashbrown) | 0.17.1 | 647,764,583 | Rust port of Google's SwissTable hash map; backs std's HashMap | | 2 | [syn](https://crates.io/crates/syn) | 3.0.5 | 561,323,557 | Parser for Rust source code, the backbone of procedural macros | | 3 | [getrandom](https://crates.io/crates/getrandom) | 0.4.3 | 556,375,586 | Small cross-platform library for random bytes from the OS | | 4 | [rand](https://crates.io/crates/rand) | 0.10.2 | 426,778,741 | Random number generators and randomness utilities | | 5 | [rand_core](https://crates.io/crates/rand_core) | 0.10.1 | 420,523,982 | Core RNG traits that rand and its backends build on | | 6 | [bitflags](https://crates.io/crates/bitflags) | 2.13.2 | 417,191,592 | Macro for generating typed bitflag structs | | 7 | [windows-sys](https://crates.io/crates/windows-sys) | 0.61.2 | 404,004,947 | Raw bindings to the Windows API from Microsoft | | 8 | [quote](https://crates.io/crates/quote) | 1.0.47 | 362,631,199 | Quasi-quoting macro for generating Rust token streams | | 9 | [libc](https://crates.io/crates/libc) | 0.2.189 | 358,071,073 | Raw FFI bindings to platform libraries like libc | | 10 | [thiserror](https://crates.io/crates/thiserror) | 2.0.20 | 357,519,479 | derive(Error) for ergonomic custom error types |
E0011 · turn 1 · assistant message
Procedural macro support (syn, quote) and randomness (rand, getrandom) dominate the ecosystem.