Add reported reproducer config test suite

.gitignore

@@ -93,3 +93,6 @@ qeff_models
 # Agent tool-specific skill links (generated by `make codex` / `make claude`)
 .agents/
 .claude/
+
+# Generated reproducer config verdict report
+tests/reproducer_configs/reproducer_config_results.md

pyproject.toml

@@ -100,5 +100,6 @@ markers = [
     "qnn: marks QNN tests",
     "cli: marks CLI tests",
     "finetune: marks finetune tests",
-    "vllm: marks vLLM tests"
-]
+    "vllm: marks vLLM tests",
+    "reproducer: marks pre-merge reported reproducer config tests"
+]

tests/reproducer_configs/README.md

@@ -0,0 +1,79 @@
+# Reported Reproducer Config Tests
+
+This suite captures reported QEfficient regression reproducers as pre-merge tests.
+Developers should add the reproducer config first, fix the bug, and rerun the
+same scenario before review.
+
+## Run the suite
+
+Run the reduced/default matrix:
+
+```bash
+pytest tests/reproducer_configs/test_reported_reproducer_configs.py -q -rs
+```
+
+Run one scenario by its `RegressionScenario.name`:
+
+```bash
+QEFF_REPRODUCER_SCENARIO=hf-transfer-import-order \
+pytest tests/reproducer_configs/test_reported_reproducer_configs.py -q
+```
+
+Run multiple scenarios with comma-separated values:
+
+```bash
+QEFF_REPRODUCER_SCENARIO=hf-transfer-import-order,ccl-default-enabled,embedding-model-compile \
+pytest tests/reproducer_configs/test_reported_reproducer_configs.py -q
+```
+
+List available scenario names without running them:
+
+```bash
+pytest tests/reproducer_configs/test_reported_reproducer_configs.py --collect-only -q
+```
+
+## Full-model reproducers
+
+Reduced/tiny models are used by default. Scenarios that need the official model
+card are gated and must be enabled explicitly:
+
+```bash
+QEFF_REPRODUCER_RUN_FULL_MODELS=1 \
+QEFF_REPRODUCER_SCENARIO=<scenario-name> \
+pytest tests/reproducer_configs/test_reported_reproducer_configs.py -q
+```
+
+Use official model cards instead of tiny reductions where both are present:
+
+```bash
+QEFF_REPRODUCER_USE_OFFICIAL_MODELS=1 QEFF_REPRODUCER_RUN_FULL_MODELS=1 \
+QEFF_REPRODUCER_SCENARIO=<scenario-name> \
+pytest tests/reproducer_configs/test_reported_reproducer_configs.py -q
+```
+
+## Runtime report
+
+The suite writes a local Markdown verdict ledger by default at
+`tests/reproducer_configs/reproducer_config_results.md`. The report header records
+the Hugging Face cache path selected for the run, including fallback to `/tmp`
+when the default cache parent is not writable. Override the report location when
+needed:
+
+```bash
+QEFF_REPRODUCER_REPORT_MD=/tmp/qeff_reproducer_results.md \
+QEFF_REPRODUCER_SCENARIO=<scenario-name> \
+pytest tests/reproducer_configs/test_reported_reproducer_configs.py -q
+```
+
+`--collect-only` does not create or update the verdict report.
+
+## Add a scenario
+
+1. Add one `RegressionScenario` entry in `test_reported_reproducer_configs.py`.
+2. Keep reporter options exact in `config`, `load_kwargs`, `export_kwargs`,
+   `compile_kwargs`, or `inference_kwargs`.
+3. Use a tiny or 2/4-layer model when it faithfully reproduces the issue.
+4. Keep the official model card and gate it with `QEFF_REPRODUCER_RUN_FULL_MODELS=1`
+   when a reduction is not faithful.
+5. Run only the new scenario with `QEFF_REPRODUCER_SCENARIO=<scenario-name>`
+   before running the broader matrix.