nexu-io/open-design · error · RuntimeError

Unsupported source: {source}

Error message

Unsupported source: {source}

What it means

Trailing fallthrough in the stream_results dispatcher. Every source is matched by an explicit `if source == '<name>':` branch; if the source string matches none of them (reddit, x, youtube, tiktok, instagram, hackernews, bluesky, threads, truthsocial, polymarket, github, pinterest, xiaohongshu, perplexity, xquik), execution reaches the RuntimeError. It is a strict allow-list guard, not a network/auth failure.

Source

Thrown at design-templates/last30days/scripts/lib/pipeline.py:1012

        return pinterest.parse_pinterest_response(result), {}
    if source == "xiaohongshu":
        return xiaohongshu_api.search_feeds(
            subquery.search_query,
            from_date,
            to_date,
            env.get_xiaohongshu_api_base(config),
            depth=depth,
        ), {}
    if source == "perplexity":
        return perplexity.search(subquery.search_query, date_range, config, deep=config.get("_deep_research", False))
    if source == "xquik":
        result = xquik.search_xquik(
            subquery.search_query, from_date, to_date,
            depth=depth,
            token=env.get_xquik_token(config),
        )
        return xquik.parse_xquik_response(result), {}
    raise RuntimeError(f"Unsupported source: {source}")


def _google_key(config: dict[str, Any]) -> str | None:
    return config.get("GOOGLE_API_KEY") or config.get("GEMINI_API_KEY") or config.get("GOOGLE_GENAI_API_KEY")




def _mock_stream_results(source: str, subquery: schema.SubQuery) -> tuple[list[dict], dict]:
    payloads = {
        "reddit": [
            {
                "id": "R1",
                "title": f"{subquery.search_query} discussion thread",
                "url": "https://reddit.com/r/example/comments/1",
                "subreddit": "example",
                "date": dates.get_date_range(5)[0],
                "engagement": {"score": 120, "num_comments": 48, "upvote_ratio": 0.91},

View on GitHub (pinned to 5be4028344)

Solutions

1. Check the failing source string in the error message and correct it to a supported name (use 'x' not 'twitter').
2. Validate SubQuery.sources against the supported-source allow-list at plan-build time rather than at retrieval time.
3. If you added a new source, extend the dispatch chain in pipeline.py stream_results before routing to it.

Example fix

# before
SubQuery(label='t', search_query='q', ranking_query='q', sources=['twitter'])

# after
SubQuery(label='t', search_query='q', ranking_query='q', sources=['x'])

SUPPORTED_SOURCES = {
    "reddit", "x", "youtube", "tiktok", "instagram", "hackernews",
    "bluesky", "threads", "truthsocial", "polymarket", "github",
    "pinterest", "xiaohongshu", "perplexity", "xquik",
}

def validate_sources(subquery):
    bad = [s for s in subquery.sources if s not in SUPPORTED_SOURCES]
    if bad:
        raise ValueError(f"Unsupported source(s) in subquery {subquery.label!r}: {bad}")

null

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When it happens

Trigger: A SubQuery whose sources list contains a string not in the supported set (e.g. 'twitter' instead of 'x', 'medium', or a custom source name) reaches stream_results. Also triggered by typos or uppercase variants since matching is case-sensitive and lowercase only.

Common situations: Planner LLM emits an unsupported source name. Manual QueryPlan construction with an unvalidated source string. Renaming a source upstream without updating the planner prompt or the dispatcher.

Related errors

• public_github_repository_metric only supports https://api.gi
• SubQuery must have at least one source
• invalid JSON in ${filePath}: ${message}
• ${filePath} must contain a JSON object
• ARTIFACT_MANIFEST_INVALID

AI-assisted analysis of nexu-io/open-design@5be4028344 (2026-08-12). Data as JSON: /api/errors/20230e2cf830acb6. Report an issue: GitHub.