{
  "demo": "hono-middleware-lifecycle",
  "repository": {
    "name": "honojs/hono",
    "url": "https://github.com/honojs/hono",
    "subsystem": "middleware composition and error response lifecycle"
  },
  "status": "simulated_reproducible_concept",
  "disclaimer": "This demo is not an upstream bug claim until reproduced against a specific Hono commit with a failing test.",
  "issue": {
    "title": "Middleware post-processing should mutate error responses created by onError",
    "root_symbol": "compose",
    "expected_behavior": "A middleware that awaits next() can mutate the final response, including responses created by onError.",
    "candidate_test": "runs middleware post-processing after onError response"
  },
  "without_sbe": {
    "files_read_estimate": "12-16",
    "tokens_estimate": "22000-30000",
    "workflow": "Broad search across middleware, dispatch, context, request, router, types, helper, and tests.",
    "risk": "Manual lifecycle inference and unrelated context."
  },
  "with_sbe": {
    "files_read_estimate": "5-7",
    "tokens_estimate": "5000-7000",
    "commands": [
      "sbe scan ./hono",
      "sbe graph compose --json",
      "sbe impact compose --json"
    ],
    "focused_ranges": [
      "src/compose.ts:18-102",
      "src/hono-base.ts:210-275",
      "src/context.ts:120-175",
      "src/types.ts:40-88",
      "src/helper/factory/index.ts:12-44",
      "src/compose.test.ts:1-90",
      "src/hono-base.test.ts:300-370"
    ],
    "estimated_token_reduction": "68-78%"
  },
  "contribution_path": [
    "Clone honojs/hono",
    "Check out a specific commit",
    "Add the candidate regression test",
    "Run the upstream test suite",
    "Open an issue only if the test reproduces",
    "Open a PR only after the fix is verified"
  ]
}