fix(runners): nested target filter dropping task inputs since #1312

[ocervell]

Fixes #1328.

Problem

Since #1312 (store-backed extractors), a scan that filters targets into a workflow and a task inside that workflow that also filters targets leaves the task with no inputs:

# scan
type: scan
workflows:
  wf1:
  wf2:
    targets_: { type: target, field: name }   # scan-level filter into wf2

# workflow wf2
type: workflow
tasks:
  mytask:
    targets_: { type: target, field: name }   # workflow-level filter into mytask

mytask receives no targets, though it should get the same targets passed to wf2. Worked before #1312.

Root cause (traced end-to-end)

A workflow with a scan-level targets_ gets a parent_scope. Its mark_runner_started re-resolves the workflow's own targets_ to emit scope-tagged Target findings that its tasks then consume (secator/celery.py). But build_extractor_query unconditionally added _context.scope == parent_scope to that query — so the producing pass searched for the exact scope it was about to create, matched nothing, and emitted zero scope-tagged targets. Every task that then filters by scope resolved to an empty set.

Debug trace on main:

# wf2 emit (producer)  -> query {_type:target, scan_id, scope:wf2} -> 0 results -> 0 emitted
# mytask (consumer)    -> query {_type:target, scan_id, scope:wf2} -> 0 results -> no inputs

Fix

The producing pass sets scope_producer in its extractor context; build_extractor_query skips the self-referential scope filter when set, so it queries the upstream targets and emits them tagged. Consumer (task) extractors are unchanged and still filter by scope — so a scan-level subset filter is still honored.

Two-line change (+ comments) in secator/celery.py and secator/runners/_helpers.py.

Tests

tests/unit/test_target_filter_scope.py runs a real scan → workflow → task (sync) with a mock task and asserts the task's resolved inputs:

• test_identity_filter_passes_all_targets — the fix: target filter in scan template not working since #1312 #1328 case
• test_scan_level_subset_filter_is_honored — a scan-level subset filter still reaches the nested task exactly (guards the consumer-side scoping)

Both fail on main, pass with the fix. Full unit suite: identical failure set before/after (the pre-existing environment-dependent failures — network/tool/config-dir — are unchanged; the fix adds +2 passing).

Summary by CodeRabbit

• Bug Fixes

  • Improved target resolution for nested workflows and scope-based filtering.
  • Workflow-level and task-level filters now correctly preserve matching targets.
  • Fixed upstream target handling for scope-producing workflow steps.

• Tests

  • Added regression coverage for target filtering across scans, workflows, and tasks.

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Walkthrough

The change marks scope-producing extraction passes and updates target query filtering to resolve upstream targets. Regression tests cover target propagation from scans through workflows to tasks.

Changes

Scope-aware target resolution

Layer / File(s)	Summary
Mark scope-producing extraction context secator/celery.py	mark_runner_started passes scope_producer=True when resolving scope-tagged workflow inputs.
Resolve upstream targets and test propagation secator/runners/_helpers.py, tests/unit/test_target_filter_scope.py	build_extractor_query skips parent-scope filtering for scope-producing passes. Tests verify full-target and subset filtering across scan, workflow, and task execution.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: 🔵 Low · up to a7d70

The change is localized, but the regression test may select the wrong workflow result, so nested target propagation is not fully verified; the PR is mergeable with explicit owner follow-up to target the wf2 execution directly.

Sequence Diagram(s)

sequenceDiagram
  participant Scan
  participant Workflow
  participant TargetQuery
  participant Task
  Scan->>Workflow: pass filtered targets
  Workflow->>TargetQuery: resolve scope-producing inputs
  TargetQuery->>Task: provide upstream filtered targets

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Possibly related PRs

• freelabz/secator#1073: Refines the scope-based target filtering and workflow resolution introduced there.
• freelabz/secator#1075: Also changes target-scope resolution in secator/runners/_helpers.py.

Poem

A rabbit traced the targets wide,
Through workflow paths and scopes beside.
Upstream hops now reach the task,
Full or filtered, as runners ask.
Tests thump softly: “Fixed!” 🐇

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 60.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly describes the nested target-filter regression and its fix.
Linked Issues check	✅ Passed	The changes address issue #1328 by preserving workflow targets for nested task inputs and add regression tests for the required filtering cases.
Out of Scope Changes check	✅ Passed	All changes support issue #1328 by updating scope-aware target extraction and adding focused regression tests.

✨ Finishing Touches 💡 1

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🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/target-filter-scope-1328

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Actionable comments posted: 1

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Inline comments:
In `@tests/unit/test_target_filter_scope.py`:
- Line 83: Update the result lookup around RESOLVED and the mytask filter to
select the execution belonging to wf2 explicitly rather than the first matching
record; use a distinguishing workflow identifier or ordered execution records,
then assert that the second chained task ran.

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