title: Be Extensible By Projects Through The Multifile Hooks Mutalog Operator 2 And Mutalog Mutate 4 required status: active text_ref: readme:README.md#L128 tags:

• strict-modeling
• confidence:0.90
• confidence-band:high
• provenance:readme-readme-md-l128
• lane:strict
• fact:property_value

fact_kind: property_value subject_key: operators.extensible property_key: be_extensible_by_projects_through_the_multifile_hooks_mutalog_operator_2_and_mutalog_mutate_4 canonical_key: knowledge-source-readme:operators.extensible:be_extensible_by_projects_through_the_multifile_hooks_mutalog_operator_2_and_mutalog_mutate_4:polarity:require operator: eq value_type: bool value_bool: true polarity: require claim_key: CLAIM-52A2B13D36667257 claim_text: Operators must be extensible by projects through the multifile hooks operator/2 and mutate/4. origin: kind: agent recorded_at: '2026-10-29T16:05:30.313Z' id: FACT-PROP-62B6D7FFCF4C9CAC type: fact ---