ScaffoldBench

RunHaiku 4.5repeat 2

Orchestrator-workers on Where ten HTTP header fields are defined

claude-haiku-4-5-20251001__orchestrator-workers__research-header-fields__r2

Score

0.900

wrong answer
design ran as designed
Cost
$0.212
Latency
1m 1s
setup 0.0s, grading 0.2s
Turns
45
Tool calls
39
Subagents
3
Tokens in / out
298k / 12k
221,359 read from cache

Did the design run?

every check held
  • Run completed: heldharness.run-completedThe environment was built, the architecture returned and grading finished, none of them throwing.
  • No API failures: heldharness.apiNo model call failed at the API.
  • Every call ended: heldharness.calls-endedEvery call ended with a result, or was stopped by the run's own limits.
  • No harness tool denied: heldharness.harness-toolsThe sandbox guard never denied a harness tool, nor a tool the session itself offered.
  • Tool servers connected: heldharness.mcp-connectedEvery tool server the harness gave a call was connected when the session started.
  • No foreign tool servers: heldharness.mcp-hermeticNo call loaded a tool server the harness did not give it.
  • Builtin tools: heldharness.builtin-toolsA check recorded with the run.
  • Structured replies arrived: heldharness.structured-outputEvery call that asked for structured output and ran to the end got it.
  • No silent fallbacks: heldharness.not-degradedNo phase fell back on a default (an empty plan, a default winner) instead of its output.
  • The task was decomposed: heldorchestrator-workers.decompositionThe orchestrator’s reply was read through its schema and held at least one subtask.
  • The fan-out happened: heldorchestrator-workers.fan-outEvery subtask got a worker, every worker ran, and the recorded subagent count matches.
  • The synthesis wrote the answer: heldorchestrator-workers.synthesisThe final answer came from the synthesis call, not from a worker’s report standing in for it.
  • Each call was shown the right tools: heldorchestrator-workers.toolsThe orchestrator and the synthesis were shown no tools and every worker the task’s full toolset.

Phases

Decompose: 0.0s to 8.6s, finished, 0 tool calls, $0.0087
Worker 1: caching-headers-1: 8.6s to 35.6s, finished, 16 tool calls, $0.069
Worker 2: caching-headers-2: 8.6s to 33.1s, finished, 8 tool calls, $0.042
Worker 3: misc-headers: 8.6s to 51.5s, finished, 15 tool calls, $0.079
Synthesize: 51.5s to 1m 1s, finished, 0 tool calls, $0.013

Drawn from the phase records: timing and cost per call, no tool calls or messages.

PhaseDurationCostTurnsToolsModel
Decompose8.6s$0.008720claude-haiku-4-5-20251001
Worker 1: caching-headers-127.0s$0.0691716claude-haiku-4-5-20251001
Worker 2: caching-headers-224.5s$0.04298claude-haiku-4-5-20251001
Worker 3: misc-headers42.8s$0.0791615claude-haiku-4-5-20251001
Synthesize9.1s$0.01310claude-haiku-4-5-20251001

The call-by-call replay is not published for this run. Traces are large, so the repository keeps 9 of this run set’s 900 and leaves the rest out; the score, phases and final answer on this page come from the committed run record.

Runs you can replay

Record this cell yourself: npm run bench -- run --strategies orchestrator-workers --tasks research-header-fields --models claude-haiku-4-5-20251001 --repeats 1

Score breakdown

  • passheader field Age
    1.00weight 0.10

    quote verified in rfc9111

  • passheader field Cache-Control
    1.00weight 0.10

    quote verified in rfc9111

  • passheader field Expires
    1.00weight 0.10

    quote verified in rfc9111

  • failheader field Last-Modified
    0.00weight 0.10

    rfc: answered "7232", expected 9110; section: answered "2.2", expected "8.8.2"; quote is from rfc7232, expected rfc9110

  • passheader field ETag
    1.00weight 0.10

    quote verified in rfc9110

  • passheader field Location
    1.00weight 0.10

    quote verified in rfc9110

  • passheader field Retry-After
    1.00weight 0.10

    quote verified in rfc9110

  • passheader field Vary
    1.00weight 0.10

    quote verified in rfc9110

  • passheader field Strict-Transport-Security
    1.00weight 0.10

    quote verified in rfc6797

  • passheader field Link
    1.00weight 0.10

    quote verified in rfc8288

Penalties

No penalties were applied.

Scorer metadata

corpus
{"version":2,"snapshot":"2026-10-01","hash":"86bd1bd14f66db67ec5c7686f5e47663ee99f16c49edb5b9384b8668854857dc","documents":9}
opened documents
["rfc9110","rfc9111","rfc6797","rfc7232","rfc8288"]
opened by role
{"primary":["rfc9110","rfc9111","rfc6797","rfc8288"],"superseded":["rfc7232"]}
displayed share
{"rfc7234":0.0213,"rfc9111":0.3141,"mdn-header-cache-control":0.0197,"rfc6797":0.1037,"mdn-header-strict-transport-security":0.0761,"rfc9110":0.0928,"rfc7231":0.0102,"rfc7232":0.2008,"rfc8288":0.2162}
cited count
5
verified count
5
hallucinated count
0
citation integrity
1
hallucinated urls
[]
answer block
true
answer block repaired
false
items answered
10
item count
10
field accuracy
0.9 (90%)
grounded items
9
field misses
{"rfc":1,"section":1}

Final answer

Based on the worker reports, I have successfully gathered RFC definitions for all 10 HTTP header fields. Here is the complete summary:

Findings

The workers collectively researched all 10 header fields and identified their current RFC definitions:

  • Age, Cache-Control, Expires are defined in RFC 9111 (HTTP Caching)
  • Last-Modified is defined in RFC 7232 (Conditional Requests)
  • ETag, Location, Retry-After, Vary are defined in RFC 9110 (HTTP Semantics)
  • Strict-Transport-Security is defined in RFC 6797 (HTTP Strict Transport Security)
  • Link is defined in RFC 8288 (Web Linking)

All RFCs cited are current and non-obsoleted versions.

{"answers":[{"field":"Age","rfc":"9111","section":"5.1","quote":"The \"Age\" response header field conveys the sender's estimate of the time since the response was generated or successfully validated at the origin server.","url":"https://www.rfc-editor.org/rfc/rfc9111.html"},{"field":"Cache-Control","rfc":"9111","section":"5.2","quote":"The \"Cache-Control\" header field is used to list directives for caches along the request/response chain.","url":"https://www.rfc-editor.org/rfc/rfc9111.html"},{"field":"Expires","rfc":"9111","section":"5.3","quote":"The \"Expires\" response header field gives the date/time after which the response is considered stale.","url":"https://www.rfc-editor.org/rfc/rfc9111.html"},{"field":"Last-Modified","rfc":"7232","section":"2.2","quote":"The \"Last-Modified\" header field in a response provides a timestamp indicating the date and time at which the origin server believes the selected representation was last modified.","url":"https://www.rfc-editor.org/rfc/rfc7232.html"},{"field":"ETag","rfc":"9110","section":"8.8.3","quote":"The \"ETag\" field in a response provides the current entity tag for the selected representation, as determined at the conclusion of handling the request.","url":"https://www.rfc-editor.org/rfc/rfc9110.html"},{"field":"Location","rfc":"9110","section":"10.2.2","quote":"The \"Location\" header field is used in some responses to refer to a specific resource in relation to the response.","url":"https://www.rfc-editor.org/rfc/rfc9110.html"},{"field":"Retry-After","rfc":"9110","section":"10.2.3","quote":"Servers send the \"Retry-After\" header field to indicate how long the user agent ought to wait before making a follow-up request.","url":"https://www.rfc-editor.org/rfc/rfc9110.html"},{"field":"Vary","rfc":"9110","section":"12.5.5","quote":"The \"Vary\" header field in a response describes what parts of a request message, aside from the method and target URI, might have influenced the origin server's process for selecting the content of this response.","url":"https://www.rfc-editor.org/rfc/rfc9110.html"},{"field":"Strict-Transport-Security","rfc":"6797","section":"6.1","quote":"The Strict-Transport-Security HTTP response header field (STS header field) indicates to a UA that it MUST enforce the HSTS Policy in regards to the host emitting the response message containing this header field.","url":"https://www.rfc-editor.org/rfc/rfc6797.html"},{"field":"Link","rfc":"8288","section":"3","quote":"The Link header field provides a means for serialising one or more links into HTTP headers.","url":"https://www.rfc-editor.org/rfc/rfc8288.html"}]}

Provenance of the numbers on this page

run set
scaffold-or-scale-v1
models
Haiku 4.5, Sonnet 5.5, Opus 5.5
effort
high
repeats
2
fixtures
replay
runs
900 / 900
strategy cost
$354.44
judge cost
$9.19
wall clock
9h 48m
git
fce5807b2d

Cost excludes judge calls, which are tracked separately so a scoring model never flatters or penalises an architecture. Every figure on this site is read from results/ at build time.