[devin-ai-integration]

Summary

Closes a test-coverage gap flagged by a code scan: parse_html_tags / parse_html_tags_raise is the parser every agent uses to turn raw LLM text into answer dicts, but its branch matrix was only partially exercised (tests/llm/test_llm_utils.py covered basic single-tag and code-block extraction only).

Adds five pure-string tests (no mocks) in tests/llm/test_llm_utils.py pinning each branch:

• required + optional keys all present -> valid=True, empty retry message
• missing required key -> valid=False, retry message names <action>; parse_html_tags_raise raises ParseError
• missing optional key -> no error, key simply absent from the dict
• repeated key, merge_multiple=False -> valid=False ("multiple instances"), dict keeps the first value; raise variant raises
• repeated key, merge_multiple=True -> values joined with \n (the path ActionPrompt._parse_answer relies on for multi-action answers)

No production code changed. pytest tests/llm/test_llm_utils.py passes (16 tests).

Devin-Org: engineering

Link to Devin session: https://app.devin.ai/sessions/ca11b20a11c041be9e2917ea2629777a
Open in Devin Desktop: https://app.devin.ai/desktop/session/ca11b20a11c041be9e2917ea2629777a?variant=devin

[devin-ai-integration]

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