Agent Continuity Kit — Self-Improving Memory & Checkpoint System for Long-Running AI Agents

Give any long-running agent durable memory, disciplined self-improvement, and safe rollback — without adopting new infrastructure. A portable methodology for Claude Projects, Custom GPTs, Claude Code, and any autonomous agent stack.

The problem this solves

Most agents hold together for twenty minutes and fall apart by hour three. Context windows fill, sessions disconnect, a constraint agreed to four turns ago gets silently dropped, or the agent drifts into solving a different problem than the one it started on. The 2026 wave of long-horizon coding agents solved this with custom daemons and persistent runtimes. This kit gives you the same discipline as a set of files and rules your agent follows — no infrastructure required.

What this kit does

• Gives your agent a Harness File — a single source of truth for task, constraints, progress, and dead ends that survives context resets
• Adds a bounded, auditable Refine Loop so the agent can improve its own working instructions from evidence — logged and reversible, never silent
• Defines a Checkpoint Protocol for safe rollback before expensive or risky actions
• Ships Stall & Drift Detection heuristics so you catch a stuck or off-task agent in minutes, not hours
• Includes a Multi-Session Handoff protocol so a fresh agent — or a human — can resume a long task from one file, with zero re-explanation

Built for

• Anyone running multi-hour or multi-day agent sessions in Claude Projects, Claude Code, or Custom GPTs
• Teams building autonomous coding, research, or ops agents who need sessions to survive disconnects
• Agencies productizing long-running agent builds for clients and needing an auditable trail of what the agent changed about itself and why

What's inside

• AGENT-CONTINUITY.md — the full methodology: Harness File schema, Refine Loop, Checkpoint Protocol, Stall/Drift Detection, multi-session handoff, a worked example, and anti-patterns
• harness-template.json — a blank Harness File ready to fill in for your task
• refine-log-template.md — a standalone, human-readable refine-cycle tracking sheet
• quick-start.md — the one-page install version for Claude Projects, Custom GPTs, and Claude Code

How you get it

Your full kit — every section, every template, copy-paste ready — is hosted at ukiyoprod.com/pages/agent-continuity-kit. Bookmark it; nothing else to download.

Author

Built by Ukiyo Productions — an original methodology developed in response to 2026's shift toward long-running, self-improving AI agents. Not affiliated with, and not derived from the source code of, any specific open-source project. Part of a 100+ product marketplace built for founders, operators, and agencies working with AI agents.