Milestones

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• v0.2.0

  The next specification release. It collects work deferred from v0.1, including negative conformance vectors, key management, transport authentication, and handshake hardening. Type: Document Workstream: Spec

  Due by March 31, 2027

  •0/19 issues closed
  0% complete19 open0 closed

• Language ports

  Port the AGT reference implementation to Python, Go, and Rust, and add a Python Guardian sample with FastMCP instrumentation. Ongoing. Type: OSS Project Workstream: Coding Agents

  No due date

  •0/4 issues closed
  0% complete4 open0 closed

• Host adapter coverage

  Add and harden host adapters beyond the reference three, including Codex, GitHub Copilot CLI, and Grok Build, and fix host-specific conformance gaps. Ongoing. Type: OSS Project Workstream: Coding Agents

  No due date

  •0/8 issues closed
  0% complete8 open0 closed

• Governance under OWASP

  Put ACS governance on a footing that works under OWASP with volunteer maintainers: working code owners, a stated first-response target for new issues, and the open lead seats filled. Type: Other Workstream: Project

  Due by December 31, 2026

  •2/7 issues closed
  28% complete5 open2 closed

• AGT interoperability benchmark

  Run AGT against ACS across coding-agent hosts and publish the conformance reports, so implementers can see which hosts honor live decisions and both failure postures. Type: Document Workstream: Coding Agents Committed: 2026-12-09

  Due by December 31, 2026

  •0/4 issues closed
  0% complete4 open0 closed

• Installable reference Guardian

  Make the reference Guardian installable: a reserved distribution name, OpenTelemetry export, span batching, dependency updates, and supply-chain checks in CI. Type: OSS Project Workstream: Reference Implementation

  Due by December 31, 2026

  •0/5 issues closed
  0% complete5 open0 closed

• ACS-Core conformant reference Guardian

  Bring the reference Guardian to ACS-Core conformance: HMAC signatures, handshake and version negotiation, replay protection, and chain hashes, checked by a requirement ledger and the published behavioral test vectors. Type: OSS Project Workstream: Reference Implementation

  Due by December 31, 2026

  •1/24 issues closed
  4% complete23 open1 closed

• Spec and docs fixes for v0.1

  Fix the contradictions and gaps found in the v0.1 specification and documentation, including envelope placement, signature requirements, version compatibility, disposition eligibility, hook coverage, and the trace mappings. Type: Document Workstream: Spec

  Due by December 31, 2026

  •0/18 issues closed
  0% complete18 open0 closed

• Reference adapters on main (Claude Code, Cursor, NAT)

  Land the reference host adapters for Claude Code, Cursor, and NVIDIA NAT, and settle the ACS-Core floor they implement: conditional MODIFY, liveness, Wrapped MCP, and subagentStart. Type: OSS Project Workstream: Coding Agents

  Due by December 31, 2026

  •1/3 issues closed
  33% complete2 open1 closed

• Fail-open decision

  Decide how a Guardian refusal differs from a decision failure, and give the mandatory fail-open audit event a conformant shape, so fail-open behavior is testable. Type: Document Workstream: Spec

  Due by December 31, 2026

  •0/2 issues closed
  0% complete2 open0 closed

• Conformance claim template

  A one-page template an implementer fills in to claim ACS-Core conformance, profile by profile, plus the statement that conformance does not establish human authorization. The claim is self-attested. This milestone delivers no independent verification and no steward. Type: Document Workstream: Spec

  Due by December 31, 2026

  •1/4 issues closed
  25% complete3 open1 closed