SDD Observatory

Agentic Context Engine

Kayba's open-source Python framework for agents that learn from experience, distilling strategies from session traces into a persistent skillbook. Its OpenClaw integration and optional MCP server were both built through Spec Kit.

Reviewed last month · Jul 19, 2026

GitHub · kayba-ai/agentic-context-engine using GitHub Spec Kit

Stars
2.6K
Contributors
29
Open issues
14
Age
10 months
Last push
2 months ago
Latest release
v0.12.0 May 7, 2026
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Commits per week, last 12 months · 841 total
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Metrics updated Aug 27, 2026 · collected automatically from the GitHub API

Spec structure

Location
specs/
Formats
Markdown
Notes
Two feature directories: 001-openclaw-integration carries the full Spec Kit artifact set (spec.md, plan.md, tasks.md, research.md, data-model.md, quickstart.md, contracts/cli.md) while 002-ace-mcp-server has spec.md and contracts/tool-schemas.md. A .specify/ directory holds the versioned ACE Framework Constitution (memory/constitution.md) plus templates and scripts.

Assessment drift: moderate

Spec-to-code drift

Moderate. Both specced features shipped, but the specs/ tree has been frozen since 2026-03-24 (10 commits total) while the project kept shipping through April–June 2026 — releases v0.11.0 and v0.12.0, a v2 Skill schema for the skillbook, and substantial reflector and skill-manager rework all landed with no spec updates. The drift reaches back into the specced features themselves: an April commit realigned the MCP and OpenClaw tests to the v2 schema without touching their spec folders, and 002-ace-mcp-server/spec.md still reads Status: Draft even though its implementation landed and was hardened in early March.

Defects and rework

The spec-path history records a same-day hardening loop: the MCP server landed on 2026-03-02 and was followed within hours by three fix(mcp) commits (“fix semantic bugs, harden safety guards, and expand test coverage”, “enforce optional dependency boundary and remove unsupported request flags”, “add learn timeouts, resolve paths canonically, harden registry draining”). Whether spec-driven features accumulate more or less rework than the project’s unspecced work is not yet assessed.

Maintenance outcomes

Too early to judge, and the open question is whether Spec Kit sticks: adoption here looks like a two-feature burst (late February to late March 2026) rather than a standing practice, with later minor releases shipping significant behaviour changes and no 003-* spec directory appearing. The .specify/ constitution is versioned and maintained (bumped to v1.1.0 with a sync-impact report), so the scaffolding remains live even while the specs/ tree idles.

Timeline

  1. Latest spec activity

    feat(providers): add Bedrock API key support + fix sandbox imports

  2. MCP server specced and shipped

    `002-ace-mcp-server` drafted and implemented the same day — "feat(mcp): add optional ACE MCP server with session-scoped tools and safety guards".

  3. Spec Kit adopted

    First commit to the `specs/` directory — "Work on spec-kit for openclaw".

Metrics updated Aug 27, 2026 · Assessment last reviewed Jul 19, 2026 · Added Jul 19, 2026 · How we track