LotusHacks 2026 2nd Place (Overall & TinyFish Enterprise Track): TinyDetective

README.md

@@ -88,6 +88,7 @@ Each folder in this repo is a standalone project. Dive in to see how to solve re
 | [stay-scout-hub](./stay-scout-hub) | Searches across all sites for places to stay when traveling for conventions or events |
 | [summer-school-finder](./summer-school-finder) | Discover and compare summer school programs from universities around the world |
 | [tenders-finder](./tenders-finder) | AI-powered Singapore government tender discovery tool scraping multiple tender portals in parallel |
+| [TinyDetective](./TinyDetective) | Brand protection for Vietnam's ecommerce industry, using TinyFish agent swarms for parallel counterfeit detection & reporting |
 | [tinyskills](./tinyskills) | Multi-source AI skill guide generator |
 | [tutor-finder](./tutor-finder) | AI-powered tutor discovery platform for competitive exams across multiple platforms |
 | [viet-bike-scout](./viet-bike-scout) | Motorbike rental price comparison tool across Vietnamese cities using parallel browser agents |
@@ -222,4 +223,3 @@ This repository is a community-driven space for sharing derivatives, code sample
 <img src="https://github.com/user-attachments/assets/2cf004f0-0065-4f21-9835-12ac693964f1" width="100%" />
 
 
-

TinyDetective/.env.example

@@ -0,0 +1,24 @@
+# TinyFish API configuration
+INVESTIGATION_STORE_PATH=data/investigations.sqlite3
+TINYFISH_API_KEY=replace-with-your-tinyfish-api-key
+TINYFISH_BASE_URL=https://agent.tinyfish.ai
+TINYFISH_BROWSER_PROFILE=stealth
+TINYFISH_PROXY_ENABLED=false
+TINYFISH_PROXY_COUNTRY_CODE=SG
+TINYFISH_POLL_INTERVAL_SECONDS=2.0
+TINYFISH_HTTP_TIMEOUT_SECONDS=15.0
+TINYFISH_RUN_SOFT_TIMEOUT_SECONDS=300.0
+TINYFISH_RUN_HARD_TIMEOUT_SECONDS=1800.0
+TINYFISH_RUN_STALL_TIMEOUT_SECONDS=120.0
+
+# OpenAI candidate triage configuration
+OPENAI_API_KEY=replace-with-your-openai-api-key
+OPENAI_BASE_URL=https://api.openai.com
+OPENAI_TRIAGE_MODEL=gpt-5-mini
+OPENAI_REASONING_MODEL=gpt-5-mini
+OPENAI_HTTP_TIMEOUT_SECONDS=30.0
+OPENAI_SHORTLIST_LIMIT=6
+
+# Brand and marketplace targets
+BRAND_LANDING_PAGE_URL=https://www.yourbrand.com/
+ECOMMERCE_STORE_URLS=https://shopee.sg/,https://www.lazada.sg/

TinyDetective/.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[codz]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py.cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+data/*.sqlite3
+data/*.sqlite
+data/*.sqlite-journal
+data/*.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# UV
+#   Similar to Pipfile.lock, it is generally recommended to include uv.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#uv.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+#poetry.toml
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#   pdm recommends including project-wide configuration in pdm.toml, but excluding .pdm-python.
+#   https://pdm-project.org/en/latest/usage/project/#working-with-version-control
+#pdm.lock
+#pdm.toml
+.pdm-python
+.pdm-build/
+
+# pixi
+#   Similar to Pipfile.lock, it is generally recommended to include pixi.lock in version control.
+#pixi.lock
+#   Pixi creates a virtual environment in the .pixi directory, just like venv module creates one
+#   in the .venv directory. It is recommended not to include this directory in version control.
+.pixi
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.envrc
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+# Abstra
+# Abstra is an AI-powered process automation framework.
+# Ignore directories containing user credentials, local state, and settings.
+# Learn more at https://abstra.io/docs
+.abstra/
+
+# Visual Studio Code
+#  Visual Studio Code specific template is maintained in a separate VisualStudioCode.gitignore 
+#  that can be found at https://github.com/github/gitignore/blob/main/Global/VisualStudioCode.gitignore
+#  and can be added to the global gitignore or merged into this file. However, if you prefer, 
+#  you could uncomment the following to ignore the entire vscode folder
+# .vscode/
+
+# Ruff stuff:
+.ruff_cache/
+
+# PyPI configuration file
+.pypirc
+
+# Cursor
+#  Cursor is an AI-powered code editor. `.cursorignore` specifies files/directories to
+#  exclude from AI features like autocomplete and code analysis. Recommended for sensitive data
+#  refer to https://docs.cursor.com/context/ignore-files
+.cursorignore
+.cursorindexingignore
+
+# Marimo
+marimo/_static/
+marimo/_lsp/
+__marimo__/

TinyDetective/README.md

@@ -0,0 +1,125 @@
+# TinyDetective
+
+## Creators
+
+- [Darrius](https://github.com/darriusnjh)
+- [Wei Sin Tai](https://github.com/weisintai)
+- [Zane Chee](https://github.com/injaneity)
+
+TinyDetective was built at **LotusHacks x HackHarvard Vietnam 2026**, where it placed **second in the Enterprise track**. The project came out of the TinyFish-sponsored challenge and focused on a practical enterprise workflow: counterfeit research across official brand sites and marketplace listings.
+
+**Live link:** Local run only
+
+**Source repo:** https://github.com/darriusnjh/TinyDetective
+
+TinyDetective is a counterfeit research platform with a modular multi-agent pipeline. It accepts an official product URL plus marketplace URLs, runs TinyFish-powered source extraction and listing analysis, then returns ranked findings with evidence and a short risk summary.
+
+The app keeps the workflow intentionally modular: adapters handle site-specific extraction, agents score and summarize results, and the backend persists investigations so unfinished runs can resume after restarts.
+
+## Demo
+
+![TinyDetective](./frontend/tinydetective.png)
+
+## TinyFish API usage
+
+TinyDetective uses the official [`tinyfish`](https://pypi.org/project/tinyfish/) Python SDK. The app queues TinyFish runs with `AsyncTinyFish.agent.queue(...)`, then resumes or polls them with `AsyncTinyFish.runs.get(...)` until structured JSON is ready:
+
+```python
+from tinyfish import AsyncTinyFish
+
+client = AsyncTinyFish(api_key=settings.tinyfish_api_key)
+queued = await client.agent.queue(
+    goal=goal,
+    url=url,
+    browser_profile=self._browser_profile(),
+    proxy_config=self._proxy_config(),
+)
+
+run = await client.runs.get(queued.run_id)
+```
+
+## How to run
+
+```bash
+uv sync --dev
+uv run python -m backend
+```
+
+You can also run the backend entry file directly:
+
+```bash
+cd backend
+uv run main.py
+```
+
+Open `http://127.0.0.1:8000`.
+
+Create `.env` from `.env.example` and set:
+
+```bash
+TINYFISH_API_KEY=your-real-key
+TINYFISH_HTTP_TIMEOUT_SECONDS=15.0
+TINYFISH_RUN_SOFT_TIMEOUT_SECONDS=300.0
+TINYFISH_RUN_HARD_TIMEOUT_SECONDS=1800.0
+TINYFISH_RUN_STALL_TIMEOUT_SECONDS=120.0
+BRAND_LANDING_PAGE_URL=https://www.yourbrand.com/
+ECOMMERCE_STORE_URLS=https://shopee.sg/,https://www.lazada.sg/
+INVESTIGATION_STORE_PATH=data/investigations.sqlite3
+```
+
+If `comparison_sites` is omitted from `POST /investigate`, the backend falls back to `ECOMMERCE_STORE_URLS`.
+
+Run tests with:
+
+```bash
+uv run pytest
+```
+
+## Architecture diagram
+
+```mermaid
+graph TD
+  User[User] --> UI[Static frontend]
+  UI --> API[FastAPI backend]
+  API --> Orchestrator[Investigation orchestrator]
+  Orchestrator --> Store[(SQLite investigation store)]
+  Orchestrator --> SourceAdapter[Official product adapter]
+  Orchestrator --> DiscoveryAdapter[Comparison site adapter]
+  SourceAdapter --> TinyFish[TinyFish async runs]
+  DiscoveryAdapter --> TinyFish
+  Orchestrator --> SourceAgent[SourceExtractionAgent]
+  Orchestrator --> DiscoveryAgent[CandidateDiscoveryAgent]
+  Orchestrator --> ComparisonAgent[ProductComparisonAgent]
+  Orchestrator --> EvidenceAgent[EvidenceAgent]
+  Orchestrator --> RankingAgent[RankingAgent]
+  Orchestrator --> SummaryAgent[ResearchSummaryAgent]
+```
+
+## Project structure
+
+- `backend/`: FastAPI app and API entrypoint.
+- `agents/`: Source extraction, discovery, comparison, evidence, ranking, and summary agents.
+- `adapters/`: TinyFish-backed official-product extraction and marketplace candidate discovery adapters.
+- `models/`: Typed Pydantic schemas for API payloads and pipeline data.
+- `services/`: Investigation orchestrator, SQLite-backed persistence, and TinyFish runtime/client abstractions.
+- `frontend/`: Minimal static UI for launching investigations and inspecting results.
+- `tests/`: Basic tests and sample fixture output.
+
+## Workflow
+
+1. `POST /investigate` creates an investigation and starts async orchestration.
+2. `SourceExtractionAgent` extracts a normalized `SourceProduct`.
+3. `CandidateDiscoveryAgent` searches the target comparison sites with TinyFish.
+4. `ProductComparisonAgent` scores similarity and counterfeit risk.
+5. `EvidenceAgent` converts comparisons into audit-friendly evidence.
+6. `RankingAgent` returns up to 5 precision-oriented matches.
+7. `ResearchSummaryAgent` writes the final investigation summary.
+8. `GET /investigation/{id}` returns status, reports, and raw agent outputs.
+
+## Notes
+
+- Investigation runs are stored in SQLite and survive backend restarts by default.
+- The default database file is `data/investigations.sqlite3`, configurable with `INVESTIGATION_STORE_PATH`.
+- The frontend restores the latest saved investigation after a page refresh using browser local storage.
+- On backend startup, unfinished investigations are resumed from SQLite, including pending TinyFish provider runs that already have a saved `run_id`.
+- Backend agent activity is written to `logs/tinydetective.log`.

TinyDetective/adapters/__init__.py

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+"""Pluggable adapters for extraction and candidate discovery."""