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charliegilletclaude
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fix(nodes): address review feedback on prompt template node
- Restructure _resolve() so context is checked before builtins with clear separation and comments documenting the priority order - Add comprehensive test case validating actual template substitution Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
1 parent a0c39bb commit c5b406c

2 files changed

Lines changed: 30 additions & 6 deletions

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nodes/src/nodes/prompt_template/services.json

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@@ -127,6 +127,21 @@
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"notEmpty": true
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}
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}
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},
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{
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"config": {
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"template": "Summarize the following: {{input}}",
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"variables": {"input": "The quick brown fox jumps over the lazy dog."}
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},
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"questions": {
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"questions": [{"text": "test prompt"}]
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},
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"expect": {
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"questions": {
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"notEmpty": true,
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"contains": "Summarize the following:"
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}
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}
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}
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]
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},

nodes/src/nodes/prompt_template/template_engine.py

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@@ -65,9 +65,13 @@
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# Context value resolution
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# ---------------------------------------------------------------------------
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def _resolve(name: str, context: dict):
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"""Resolve a dotted name against *context*, falling back to built-ins."""
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"""Resolve a dotted name against *context*, falling back to built-ins.
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Resolution order: context takes priority over built-in helpers.
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"""
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name = name.strip()
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# 1. Try context first — user-supplied values always win
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parts = name.split('.')
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value = context
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for part in parts:
@@ -76,11 +80,16 @@ def _resolve(name: str, context: dict):
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else:
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value = getattr(value, part, _MISSING)
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if value is _MISSING:
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# Fall back to built-in helpers if not found in context
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if name in _BUILTINS:
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return _BUILTINS[name]()
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return ''
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return value
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break
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if value is not _MISSING:
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return value
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# 2. Fall back to built-in helpers only when context lookup failed
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if name in _BUILTINS:
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return _BUILTINS[name]()
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return ''
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# ---------------------------------------------------------------------------

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