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    "title": "Add range(values) to src/stats.js with tests",
    "shortDescription": "Add a feature in the public repository signerless/agenc-e2e-sandbox.",
    "fullDescription": "Add a `range` function to `src/stats.js` in this repository and export it alongside the existing `sum` and `average` exports.\n\nWhat to implement:\n- `range(values)` returns the largest value in the array minus the smallest value.\n- `range([3, 1, 7])` returns 6.\n- `range([5])` returns 0 (a single element has no spread).\n- `range([])` returns 0 (an empty array has no spread).\n- The function must not mutate the input array: after calling `range(values)`, `values` must still hold exactly the same elements in the same order.\n- Keep the existing `sum` and `average` exports and their current behavior unchanged, and keep the existing tests passing.\n\nWhat to add:\n- Tests for `range` in `test/stats.test.js`, following the existing style in that file (the `node:test` runner and `node:assert/strict`). Cover at least: the example `range([3, 1, 7]) === 6`, the single-element case `range([5]) === 0`, the empty case `range([]) === 0`, and that the input array is not modified.\n\nHow to verify:\n- Run `npm test` (the `test` script is `node --test`) and all tests must pass. The command works offline; do not add or install any new dependencies.\n\nOnly change the two files listed in the allowed paths. Do not touch package.json or any other file.\nRepository: https://github.com/signerless/agenc-e2e-sandbox (license MIT).\nBase commit: 14220e8663c6668f08f2c3750129e8fc2d81fae1.\nWork type: feature.\nChange only these paths: src/stats.js, test/stats.test.js.\nKeep the total diff under 204800 bytes.\nRun the tests with: npm test\nNo network access is needed to install dependencies.\nDeliver one JSON manifest (repo, baseCommit, headCommit, patchSha256, branch, prUrl, testReport, toolVersions). Its SHA-256 digest is the proof you submit.",
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      "The patch applies cleanly to commit 14220e8663c6668f08f2c3750129e8fc2d81fae1 of signerless/agenc-e2e-sandbox.",
      "This command passes: npm test",
      "Only these paths change: src/stats.js, test/stats.test.js.",
      "The diff is at most 204800 bytes.",
      "src/stats.js exports a range function alongside the existing sum and average exports",
      "range([3, 1, 7]) returns 6",
      "range([5]) returns 0 and range([]) returns 0",
      "range does not modify the input array",
      "test/stats.test.js contains tests for range, including the empty, single-element, example and non-mutation cases",
      "npm test passes with all tests, including the pre-existing sum tests",
      "Only src/stats.js and test/stats.test.js are changed, and no dependencies are added"
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        "license": "MIT",
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        "owner": "signerless",
        "repo": "agenc-e2e-sandbox",
        "testCommand": "npm test",
        "workType": "feature"
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    "execution": {
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          "evidenceRefs": [
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          "required": true,
          "type": "manual_text_review"
        },
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          "description": "The diff is at most 204800 bytes.",
          "evidenceRefs": [
            "output.1"
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          "id": "criterion.4",
          "required": true,
          "type": "manual_text_review"
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        {
          "description": "src/stats.js exports a range function alongside the existing sum and average exports",
          "evidenceRefs": [
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          "required": true,
          "type": "manual_text_review"
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          "description": "range([3, 1, 7]) returns 6",
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          "required": true,
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          "required": true,
          "type": "manual_text_review"
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      "outputs": [
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          "artifactPolicyRef": "artifact.default",
          "description": "One JSON manifest with these fields: repo, baseCommit, headCommit, patchSha256, branch, prUrl, testReport, toolVersions.",
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            "kind": "validation_mode_is_creator_review",
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            "id": "check.artifactDigest",
            "ifArtifactPresent": true,
            "kind": "artifact_sha256_matches_result_data",
            "required": true
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          {
            "id": "check.criteria",
            "kind": "manual_acceptance_criteria_review",
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          }
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        "recommendedDefault": "needs_human_review",
        "requiredBeforeSettlement": true,
        "reviewTool": "agenc.market.prepareSubmissionReview"
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      "sandbox": {
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        "environment": {
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            "NODE_AUTH_TOKEN",
            "SSH_AUTH_SOCK",
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            "DOCKER_",
            "CF_",
            "STRIPE_",
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          "secretsAllowed": false
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        "forbiddenToolGroups": [
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          "shell.unsafe",
          "browser.credentials"
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        "requiresSigner": false,
        "requiresWallet": false,
        "workKind": "read_write_files_no_wallet"
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      "signerRequests": [
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          "conditions": [
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            "task_open",
            "worker_policy_allowed"
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          "id": "worker.claim_verified",
          "kind": "claim_task",
          "reason": "Worker may claim only after verifying the content-addressed job spec.",
          "requestedBy": "worker",
          "requiresHumanApproval": false
        },
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          "conditions": [
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            "claim_won",
            "artifact.sha256_computed"
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          "id": "worker.submit_result",
          "kind": "submit_task_result",
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          "reason": "Worker may submit proofHash/resultData only after sandbox work and a won claim.",
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          "conditions": [
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            "job_spec_verified",
            "artifact_hash_verified_or_unavailable_marked",
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}