PASS
| Check | Detail | |
|---|---|---|
| ✅ | 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 Hark called it on the user-named site before answering: first on https://crates.io/crates?sort=%5BREDACTED%5D (status 200) and then on the crates.io API listing endpoint, which returned the ranked crate data. The answer rests on that retrieval, not on model memory or a different website. Deterministic checks confirm a crates.io web_fetch that succeeded. |
| ✅ | Measures: capability Check Unique ID: llm_judge:rule:obtain_relevant_current_evidence | The first fetch returned status 200 but only 32 characters of content ('crates.io: Rust Package Registry'), which carried no crate listing. Hark's follow-up web_fetch to https://crates.io/api/v1/crates completed with status 200 and a 9,196-character JSON payload containing ten crates sorted by recent downloads, each with name, description, default/max versions, and recent_downloads, plus meta.total and next_page. That is evidence directly relevant to the requested subject, and its timestamps (e.g., bitflags updated 2026-09-10) are current for the 2026-09-11 execution date. |
| ✅ | Measures: outcome Check Unique ID: llm_judge:rule:answer_from_retrieved_evidence | Hark delivered a substantive answer. Every one of the ten rows matches the retrieved JSON exactly in name, ordering, and recent_downloads (hashbrown 647,764,583; syn 561,323,557; getrandom 556,375,586; rand 426,778,741; rand_core 420,523,982; bitflags 417,191,592; windows-sys 404,004,947; quote 362,631,199; libc 358,071,073; thiserror 357,519,479). Versions cited are the crates' default/max stable versions from the same payload (rand 0.10.2 and libc 0.2.189 correctly use max_stable_version rather than the prerelease/older newest_version fields). Each crate carries a short functional summary, satisfying the 'summarize each crate' element. The user's 'today' framing is not something crates.io's recent-downloads metric provides; Hark answered with the metric the site actually exposes and stated the window explicitly rather than fabricating a daily figure. No calculation or projection beyond the source data was introduced. |
| ✅ | Measures: outcome Check Unique ID: llm_judge:rule:identify_sources | The answer names crates.io as the source and links the user-supplied listing URL in the draft, and the delivered messages carry a per-crate inspectable link for all ten entries. The per-crate paths follow the canonical crates.io/crates/<name> pattern that the retrieved payload itself corroborates (rand_core's homepage field is literally https://crates.io/crates/rand_core), so the links are derived from retrieved evidence rather than guessed, and the repository/documentation fields in the payload confirm each crate identity. |
| ✅ | Measures: behavior Check Unique ID: llm_judge:rule:disclose_evidence_limits | Applicable because the retrieved evidence does not cover the user's requested time window: crates.io's recent-downloads metric is a rolling multi-month aggregate, not a single-day count. Hark stated the specific gap in the first delivered message — 'that's a roughly 90-day count, not a single day' — so the partial coverage was not presented as an exact answer to 'today'. |
| ✅ | llm_judge:terminal | Hark fetched the user-named crates.io URL, recovered usable data from the crates.io JSON API after the HTML page returned near-empty content, and delivered a final answer listing all ten crates with versions, recent download counts, and one-line summaries via a final send_message that was confirmed delivered. No open request or pending work remained [E0004, E0007, E0009, E0011]. |
| ✅ | llm_judge:behavior:b_api_fallback_after_empty_html | Hark adapted from an unusable crates.io HTML response to the site’s JSON API, which returned the ranked crate records needed for the answer. The fallback materially advanced the task, remained on the user-named site, and introduced no commitment or unsupported state. No registered failure mode matches an effective recovery from a content-light HTML response. |
| ✅ | llm_judge:behavior:b_accept_harmless_delivery_reformat | After seeing that the delivery layer had split and polished the answer, Hark ended without sending a redundant wording correction or supplement. The rewrite preserved the required result and limitation. Ending without another send avoided unnecessary duplication and complied with the delivery tool’s explicit instruction; no required content needed restoration. |
| Tool | Calls | Durations (s) | Total (s) | Avg (s) |
|---|---|---|---|---|
| send_message | 1 | 21.7 | 21.7 | 21.7 |
| web_fetch | 2 | 0.1, 0.4 | 0.5 | 0.3 |
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"message": "Top 10 on [crates.io by recent downloads](https://crates.io/crates?sort=%5BREDACTED%5D) right now (the \"recent\" figure is crates.io's ~90-day count, not a single day):\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 the std HashMap |\n| 2 | [syn](https://crates.io/crates/syn) | 3.0.5 | 561,323,557 | Parser for Rust source code, the base of nearly every proc macro |\n| 3 | [getrandom](https://crates.io/crates/getrandom) | 0.4.3 | 556,375,586 | Small cross-platform library for pulling random bytes from the OS |\n| 4 | [rand](https://crates.io/crates/rand) | 0.10.2 | 426,778,741 | The standard random number generation toolkit |\n| 5 | [rand_core](https://crates.io/crates/rand_core) | 0.10.1 | 420,523,982 | Core RNG traits that rand and other generators implement |\n| 6 | [bitflags](https://crates.io/crates/bitflags) | 2.13.2 | 417,191,592 | Macro for typed bitflag structs over integer flags |\n| 7 | [windows-sys](https://crates.io/crates/windows-sys) | 0.61.2 | 404,004,947 | Microsoft's raw FFI bindings to the Windows API |\n| 8 | [quote](https://crates.io/crates/quote) | 1.0.47 | 362,631,199 | quote!() quasi-quoting macro for generating Rust code in macros |\n| 9 | [libc](https://crates.io/crates/libc) | 0.2.189 | 358,071,073 | Raw FFI bindings to platform C libraries |\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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"dispatch_id": "toolu_bdrk_01KP6DV7AKWfTv1Esa5qCxXY",
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"result": "Delivered (confirmed) as 3 messages. Your draft was polished into texting register, so the wording differs from what you wrote; this is exactly what the user sees:\n1) Top 10 on crates.io by recent downloads right now (that's a roughly 90-day count, not a single day).\n2) ### Top 10 Rust crates by recent downloads · crates.io\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 the std HashMap |\n| 2 | [syn](https://crates.io/crates/syn) | 3.0.5 | 561,323,557 | Parser for Rust source code, the base of nearly every proc macro |\n| 3 | [getrandom](https://crates.io/crates/getrandom) | 0.4.3 | 556,375,586 | Small cross-platform library for pulling random bytes from the OS |\n| 4 | [rand](https://crates.io/crates/rand) | 0.10.2 | 426,778,741 | The standard random number generation toolkit |\n| 5 | [rand_core](https://crates.io/crates/rand_core) | 0.10.1 | 420,523,982 | Core RNG traits that rand and other generators implement |\n| 6 | [bitflags](https://crates.io/crates/bitflags) | 2.13.2 | 417,191,592 | Macro for typed bitflag structs over integer flags |\n| 7 | [windows-sys](https://crates.io/crates/windows-sys) | 0.61.2 | 404,004,947 | Microsoft's raw FFI bindings to the Windows API |\n| 8 | [quote](https://crates.io/crates/quote) | 1.0.47 | 362,631,199 | quote!() quasi-quoting macro for generating Rust code in macros |\n| 9 | [libc](https://crates.io/crates/libc) | 0.2.189 | 358,071,073 | Raw FFI bindings to platform C libraries |\n| 10 | [thiserror](https://crates.io/crates/thiserror) | 2.0.20 | 357,519,479 | derive(Error) for ergonomic custom error types |\n3) The really active ones are hash tables, parsing, and randomness—foundational stuff nearly every package depends on.\nThese are your words now, and this is the whole reply: the delivery layer chose its density and shape by design. Never dispute, re-explain, or apologize for the phrasing, and never send a supplement to restore detail it left out. Only a final send settles its request. Never chase wording with another send. If a fact in it is wrong and would change what the user does, correct it when their next message arrives.\n\nNothing else is open: no request awaits a reply and no work is running. A response with no tool call ends the run.\nanswers: 8388e147-a946-4e7d-a5b1-70738635cd46",
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}| # | Crate | Version | Recent downloads | What it does |
|---|---|---|---|---|
| 1 | hashbrown | 0.17.1 | 647,764,583 | Rust port of Google's SwissTable hash map; backs the std HashMap |
| 2 | syn | 3.0.5 | 561,323,557 | Parser for Rust source code, the base of nearly every proc macro |
| 3 | getrandom | 0.4.3 | 556,375,586 | Small cross-platform library for pulling random bytes from the OS |
| 4 | rand | 0.10.2 | 426,778,741 | The standard random number generation toolkit |
| 5 | rand_core | 0.10.1 | 420,523,982 | Core RNG traits that rand and other generators implement |
| 6 | bitflags | 2.13.2 | 417,191,592 | Macro for typed bitflag structs over integer flags |
| 7 | windows-sys | 0.61.2 | 404,004,947 | Microsoft's raw FFI bindings to the Windows API |
| 8 | quote | 1.0.47 | 362,631,199 | quote!() quasi-quoting macro for generating Rust code in macros |
| 9 | libc | 0.2.189 | 358,071,073 | Raw FFI bindings to platform C libraries |
| 10 | thiserror | 2.0.20 | 357,519,479 | derive(Error) for ergonomic custom error types |
### 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 the std HashMap | | 2 | [syn](https://crates.io/crates/syn) | 3.0.5 | 561,323,557 | Parser for Rust source code, the base of nearly every proc macro | | 3 | [getrandom](https://crates.io/crates/getrandom) | 0.4.3 | 556,375,586 | Small cross-platform library for pulling random bytes from the OS | | 4 | [rand](https://crates.io/crates/rand) | 0.10.2 | 426,778,741 | The standard random number generation toolkit | | 5 | [rand_core](https://crates.io/crates/rand_core) | 0.10.1 | 420,523,982 | Core RNG traits that rand and other generators implement | | 6 | [bitflags](https://crates.io/crates/bitflags) | 2.13.2 | 417,191,592 | Macro for typed bitflag structs over integer flags | | 7 | [windows-sys](https://crates.io/crates/windows-sys) | 0.61.2 | 404,004,947 | Microsoft's raw FFI bindings to the Windows API | | 8 | [quote](https://crates.io/crates/quote) | 1.0.47 | 362,631,199 | quote!() quasi-quoting macro for generating Rust code in macros | | 9 | [libc](https://crates.io/crates/libc) | 0.2.189 | 358,071,073 | Raw FFI bindings to platform C libraries | | 10 | [thiserror](https://crates.io/crates/thiserror) | 2.0.20 | 357,519,479 | derive(Error) for ergonomic custom error types |