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edictum-oss

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Implement features in the Edictum OSS core (src/edictum/). Use when the task touches pipeline, adapters, YAML engine, CLI, audit, envelope, or session. Core NEVER imports from ee/.

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Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/development/edictum-oss/SKILL.md

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Edictum OSS Core Implementation

Read CLAUDE.md first. Understand the tier boundary before writing code.

Scope

Everything under src/edictum/ is OSS core (MIT). This includes:

  • Pipeline (pipeline.py) — GovernancePipeline, PreDecision, PostDecision
  • Envelope (envelope.py) — ToolEnvelope, Principal, create_envelope()
  • Contracts (contracts.py) — @precondition, @postcondition, @session_contract, Verdict
  • YAML engine (yaml_engine/) — loader, evaluator, compiler, templates
  • Adapters (adapters/) — all 6 framework adapters
  • Audit (audit.py) — AuditEvent, StdoutAuditSink, FileAuditSink, RedactionPolicy
  • Session (session.py) — Session, MemoryBackend
  • CLI (cli/) — validate, check, diff, replay, test
  • Telemetry (telemetry.py) — OTel spans, GovernanceTelemetry
  • Protocols (pii.py) — PIIDetector protocol, PIIMatch dataclass (interface only)

The ONE RULE

Core code NEVER imports from ee/. If you need functionality from ee/, define a protocol/interface in core and let ee/ implement it.

Workflow

  1. Read CLAUDE.md — understand boundaries and dropped features
  2. Read the Linear ticket or user description
  3. Read relevant source files before proposing changes
  4. Scope with user — confirm approach before writing code
  5. Implement — small, focused changes
  6. Behavior test — every new/changed API parameter gets a test in tests/test_behavior/test_{module}_behavior.py
  7. Docs-code sync — pytest tests/test_docs_sync.py -v
  8. Adapter parity — if touching adapters: pytest tests/test_adapter_parity.py -v
  9. Test — pytest tests/ -v then ruff check src/ tests/
  10. Commit — conventional commits, no Co-Authored-By

Conventions

  • Frozen dataclasses for immutable data
  • All pipeline/session/audit methods are async
  • from __future__ import annotations in every file
  • Type hints everywhere
  • Test file per module: tests/test_{module}.py

Do NOT

  • Import from ee/ — core is self-contained
  • Implement Redis/DB StorageBackend — dropped feature
  • Implement PII detection backends in core — those go in ee/
  • Add Webhook/Splunk/Datadog sinks to core — those go in ee/
  • Accept a parameter without testing its observable effect — if it's accepted, it must DO something testable
  • Document a feature that doesn't exist in code — pytest tests/test_docs_sync.py -v catches this
  • Ship an adapter change without running parity checks — pytest tests/test_adapter_parity.py -v