fix(agent): keep Switch from crashing on unparseable numeric comparisons

[Harsh23Kashyap]

What problem does this PR solve?

Fixes #19416

When the switched variable is a number, Switch._invoke converted the comparison value with float(operatee) unconditionally. An empty or non-numeric comparison value (easy to produce: check() only requires a branch target) crashed the whole canvas run with ValueError, and the mixed-type fallback in process_operator (5 > "abc") raised TypeError the same way.

Fix: keep the raw comparison value when it is not parseable as a float, and fall back to a lexicographic comparison for mixed types. A bad comparison value becomes a non-match instead of a run-killing exception.

Type of change

• Bug Fix (non-breaking change which fixes an issue)

Testing

Added test/unit_test/agent/component/test_switch_numeric_comparison.py (4 tests, stub-isolated module load):

• numeric variable + empty value falls through to ELSE (previously ValueError)
• numeric variable + non-numeric value with > falls through (previously ValueError/TypeError)
• numeric comparison still matches (5 > "3" routes to the case branch)
• string comparison unchanged

Reproduced both crashes on current main before the fix. 4/4 pass after.

[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

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Run ID: 574f33fb-c1a1-461a-b37f-c2a809ee54e9

📥 Commits

Reviewing files that changed from the base of the PR and between 9dd4774 and 0caab7d.

📒 Files selected for processing (2)

• agent/component/switch.py
• test/unit_test/agent/component/test_switch_numeric_comparison.py

🚧 Files skipped from review as they are similar to previous changes (1)

• test/unit_test/agent/component/test_switch_numeric_comparison.py

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📝 Walkthrough

Walkthrough

The Switch component now preserves unparseable numeric operands and treats mixed-type ordering comparisons as non-matches. Regression tests cover invalid operands and valid numeric and string comparisons.

Changes

Switch comparison handling

Layer / File(s)	Summary
Comparison parsing and fallback agent/component/switch.py	Numeric conversion keeps unparseable values as raw values. The >, <, ≥, and ≤ operators return False when mixed-type comparison raises TypeError.
Regression coverage test/unit_test/agent/component/test_switch_numeric_comparison.py	Tests load the Switch module with stubs and verify non-matching invalid values, numeric matches, string matches, and all four ordering operators.

Priority: ➖ Normal

Estimated code review effort: 3 (Moderate) | ~20 minutes

Severity of issue fixed: Medium

Merge Risk: ⚪ Minimal · up to 0caab

Switch comparisons with invalid numeric targets now fall through as non-matches rather than terminating the run, with no current merge-blocking risk identified.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 6.67% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 15 functions across 2 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the main fix: preventing Switch crashes for unparseable numeric comparisons.
Description check	✅ Passed	The description explains the problem, root cause, fix, change type, linked issue, and regression tests. It does not use the template's exact "Summary" heading, but it provides the required information…
Linked Issues check	✅ Passed	The changes satisfy issue #19416 by preserving unparseable comparison values and treating empty or mixed-type numeric comparisons as non-matches instead of raising exceptions. The regression tests cov…
Out of Scope Changes check	✅ Passed	The production change and regression tests are directly related to issue #19416. No unrelated code or scope expansion is evident.

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_{A rabbit checks each value in line
Empty strings no longer cause decline
Mixed types fall through with care
Valid numbers still compare fair
The Switch now hops without a crash
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[coderabbitai]

Actionable comments posted: 1

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Inline comments:
In `@agent/component/switch.py`:
- Line 128: Update the comparison logic in the switch operator handling so
numeric inputs paired with unparseable comparison values return False rather
than falling back to lexicographic string comparison, including the < and ≤
paths and the other affected operators. Add regression coverage for < and ≤ with
a numeric input and non-numeric value, preserving normal comparisons when both
values are parseable.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Advanced

Run ID: aca1ac9a-ca44-4227-b2b4-e2525d96daaf

📥 Commits

Reviewing files that changed from the base of the PR and between 14fa559 and 9dd4774.

📒 Files selected for processing (2)

• agent/component/switch.py
• test/unit_test/agent/component/test_switch_numeric_comparison.py

Included review availability: Your plan provides up to 10 included reviews per hour; 5 remain after this review.

[Harsh23Kashyap]

Good catch from the review: the lexicographic fallback made "5" < "abc" match. Mixed-type ordering comparisons now return a non-match instead, with regression cases for all four ordering operators.