fix: reject unknown with keys for the jq executor (#3440) - #3559

Actionable comments posted: 1

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Inline comments:
Review comments at @internal/runtime/builtin/jq/config.go:
- Around line 21-22: Remove the unused filter and data properties from the jq
schema so direct type: jq steps reject them, and update
TestJQRejectsUnknownWithKey to verify both are rejected. Preserve coverage
confirming spec.LoadYAML accepts these keys through the jq.filter normalization
path.

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Reviewing files that changed from the base of the PR and between b142b25 and e9fcd06.

Files selected for processing: 2

• internal/runtime/builtin/jq/config.go
• internal/runtime/builtin/jq/jq_test.go

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Thanks @CJstate! I pushed a small follow-up: dropped filter/data from the schema (jq.filter strips them before validation, so they only let type: jq typos through) and added the spec line plus a conformance case.

Verdict

Safe to merge. Nothing blocking found.

The change is narrow: it closes the jq executor config schema (additionalProperties: false) so unknown with/config keys fail at DAG parse time, matching js, template, file, state, and xlsx. The spec and a conformance fixture pin the behavior, including the misspelling hint.

Prior review feedback

The only actionable earlier finding (CodeRabbit: drop the filter/data properties so type: jq typos are not let through) is addressed in f84da30; d47a7ce adds the spec sentence and the unknown_field.yaml conformance case. The maintainer already approved at that HEAD. No regression introduced by those follow-ups.

Note: the PR description is now stale — it still says filter and data "are declared so the closed schema does not reject them", which is the opposite of what HEAD does. The cubic summary is correct. Worth fixing the body before merge so the commit history and description agree.

What I verified by reading

• normalizeJQFilterAction (internal/spec/step_v2.go:826) always deletes filter (it errors first when missing) and deletes data when present, so the closed schema never sees either key from the action: jq.filter path. Rejecting them is only reachable via type: jq.
• jqConfig (internal/runtime/builtin/jq/jq.go:39) decodes exactly raw, input, args — all declared — and args keeps its permissive nested schema, so arbitrary variable names still validate.
• No code path injects extra keys into a jq step's executor config: the DAG-level merges in internal/spec/step.go are limited to redis, harness, and kubernetes types.
• A type: jq step with with.filter/with.data never worked (the query comes from command, the input from script/config.input), so no working DAG is broken by the stricter check. The compat impact is limited to DAGs carrying typo'd or dead keys — which is the point of #3440.
• No fixture, example, or SCHEMA_MIGRATION.md sample uses a jq key outside {filter, data, input, args, raw}.
• closestKey threshold (len/3+1 = 3 for inpout) comfortably admits the distance-1 input suggestion the conformance test asserts.

Follow-ups (non-blocking)

1. The authoring schema is now out of step with the runtime: internal/cmn/schema/dag.schema.json still declares jqFilterActionConfig with additionalProperties: true and no raw property, while jsRunActionConfig and templateRenderActionConfig are closed. The UI editor and the visual-editor inspector consume that file, so a misspelled key gets no editor warning but fails dagu validate. See the inline comment.
2. The spec documents the rule for the jq.filter action; the new type: jq rejection of filter/data that TestJQRejectsUnknownWithKey pins is not stated anywhere. See the inline comment.

Performance and resource safety

None found by inspection; I ran no tests, builds, or profiling locally (CI is still in progress on this HEAD).

• CPU: schema validation already ran once per step at parse time. additionalProperties: false adds a bounded per-key check over three declared properties. unknownKeyHint/closestKey run only on the failure path and are O(properties x key length). The resolved schema is cached per entry behind sync.Once, so nothing is recompiled per step or per run.
• Memory: one extra static schema value at package init; no new maps, caches, buffers, or retained references. Nothing in the executor hot path changed.
• Disk/IO, file count: unchanged — no new reads, writes, logs, or artifacts.
• Leaks and concurrency: no goroutines, timers, channels, or file descriptors introduced; validation is synchronous and allocation-bounded.
• Long-running servers/schedulers/workers: validation is parse-time only, so repeated DAG execution is unaffected; the only behavioral shift is that a previously-accepted malformed DAG now fails earlier, which reduces wasted run work.

Reviewed with claude-opus-5 (reasoning effort: xhigh)

Verdict

Safe to merge. Nothing blocking.

HEAD is unchanged since the last review pass (d47a7ce, 3 commits, full-ci label present). Every check is green, including all four conformance shards, so the new spec058_jq/unknown_field.yaml case actually ran rather than being skipped.

Prior review feedback

• CodeRabbit — drop filter/data from the schema so type: jq typos are not let through: addressed in f84da30. The schema now declares only raw, input, args.
• Stale PR description (claimed filter/data were declared): resolved — the current body matches HEAD.
• internal/cmn/schema/dag.schema.json divergence and spec silence on the type: jq rejection: both still open, both explicitly non-blocking and fine as a separate PR. Not reposting them inline since they were already filed against this same commit.

What I verified by reading

• normalizeJQFilterAction (internal/spec/step_v2.go:826) errors when filter is missing and otherwise deletes it, and deletes data when present, before finishAction hands the remaining with map over as executor config. The closed schema therefore never sees either key from the action: jq.filter path — only from a typed step, where jqConfig (internal/runtime/builtin/jq/jq.go:39) decodes just raw/input/args and the query comes from command, the input from script or config.input. No working DAG loses behavior; only dead or misspelled keys start failing, which is the point of #3440.
• args keeps AdditionalProperties: &jsonschema.Schema{}, so arbitrary variable names still validate. The closure pattern matches js, template, file, state, xlsx, mail, ssh.
• No code path injects extra keys into a jq step's executor config — the only ExecutorConfig.Config[...] writes in internal/spec/ are for redis, harness, and kubernetes types.
• forbidsAdditionalProperties (internal/executor/registry/schema.go:92) recognizes the Not: &jsonschema.Schema{} shape, so the hint path engages. closestKey allows len/3+1 = 3 edits for inpout; input is distance 1 and the only candidate under threshold, so the conformance assertion on the exact suggestion string is stable rather than order-dependent.
• Nothing in examples/, the conformance fixtures, or SCHEMA_MIGRATION.md uses a jq key outside {filter, data, input, args, raw}.

Follow-ups (non-blocking, separate PR)

1. jqFilterActionConfig in internal/cmn/schema/dag.schema.json (and its mirror under schemas/) is still additionalProperties: true and omits raw, while jsRunActionConfig and templateRenderActionConfig are closed. That file is served to the UI editor and drives the visual-editor inspector, so a misspelled with key gets no editor diagnostic but a hard dagu validate failure. Adding raw is a prerequisite for flipping the flag — the spec example and several integration DAGs set with.raw.
2. specs/058-jq-filter.md documents the rule for the action but not the type: jq rejection of filter/data that TestJQRejectsUnknownWithKey pins. One sentence near the existing type: jq paragraph would cover it.
3. Minor: the key loop in TestJQRejectsUnknownWithKey has no t.Run, so the first failing key aborts the rest and the failure output does not name which key regressed.

Performance and resource safety

None found by inspection. I ran no tests, builds, or profiling locally.

• CPU: schema validation already ran once per step at parse time; additionalProperties: false adds a bounded check over three declared properties. unknownKeyHint/closestKey run only on the failure path. The resolved schema is cached per entry behind sync.Once, so nothing recompiles per step or per run.
• Memory: one extra static schema value at package init. No new maps, caches, buffers, or retained references; the executor hot path is untouched.
• Disk/IO and file count: unchanged — no new reads, writes, logs, or artifacts.
• Leaks and concurrency: no goroutines, timers, channels, or file descriptors introduced; validation is synchronous and allocation-bounded.
• Long-running servers/schedulers/workers: parse-time only, so repeated DAG execution is unaffected. The one behavioral shift is that a malformed DAG now fails earlier, which avoids wasted run work.

Thanks for the clean, tightly scoped change and for pinning it with both a spec sentence and a conformance case.

Reviewed with claude-opus-5 (reasoning effort: xhigh)

Thanks @CJstate, closing the jq schema and pinning the inpout typo hint with a conformance case is exactly what #3440 needed.