NickalasLight

Operating model for the main agent orchestrating development — GitHub issues as the todo list, Sonnet 4.6 max-effort executor fan-out via worktrees + PRs into main, code-gated review loop, sole-reviewer merging. Auto-injected every session by the SessionStart hook.

Maintain `handoff.md` at the meta-repo root as the single, curated, never-stale ROLLING MEMORY of the whole project — current development status AND every durable learned truth — so any brand-new agent with zero foreknowledge can fully take over. This is an ORCHESTRATOR-ONLY duty. Use it: (1) the moment a context compaction/summary/handoff is imminent — flush the live context window into handoff.md FIRST; (2) after any milestone, merge, decision, architecture change, or newly-learned gotcha that changes durable state; (3) at session start, to READ handoff.md before acting; (4) whenever asked to update/regenerate/fix the handoff. Core rule: ACCRETE + CURATE, never blind-overwrite — preserve durable truths, supersede only what is truly stale.

Operating procedure for the issue-triage subagent — a narrow GitHub-issue clerk that creates, merges, updates, or closes issues exactly as instructed, with context-efficient search and careful flag hygiene. Preloaded into the issue-triage agent; not for the main agent.

Operating procedure for the sonnet-executor subagent — resolve exactly ONE GitHub issue into one focused PR into main. Preloaded into the sonnet-executor agent; not for the main agent.

Operating model for the Fable main agent orchestrating jerb development — GitHub issues as the todo list, Sonnet max-effort executor fan-out via worktrees + PRs into main, code-gated review loop, sole-reviewer merging. Auto-injected every session by the SessionStart hook.

Maintain `handoff.md` at the project meta-repo root ({{MAIN_REPO}}) as the single, curated, never-stale ROLLING MEMORY of the whole project — current development status AND every durable learned truth — so any brand-new agent with zero foreknowledge can fully take over. This is an ORCHESTRATOR-ONLY duty. Use it: (1) the moment a context compaction/summary/handoff is imminent — flush the live context window into handoff.md FIRST; (2) after any milestone, merge, decision, architecture change, or newly-learned gotcha that changes durable state; (3) at session start, to READ handoff.md before acting; (4) whenever asked to update/regenerate/fix the handoff. Core rule: ACCRETE + CURATE, never blind-overwrite — preserve durable truths, supersede only what is truly stale.

Operating procedure for the issue-triage subagent — a narrow GitHub-issue clerk that creates, merges, updates, or closes issues across the jerb repos exactly as instructed, with context-efficient search and careful flag hygiene. Preloaded into the issue-triage agent; not for the main agent.

Operating procedure for the sonnet-executor subagent — resolve exactly ONE GitHub issue into one focused PR into main under the jerb operating model. Preloaded into the sonnet-executor agent; not for the main agent.

Self-contained diagnostic and workaround guidance for the Codex 5.5 reasoning-collapse bug where reasoning becomes shallow or quantized around 512 reasoning output tokens, often observed as reasoning_output_tokens near 516. Use when Codex 5.5 reasoning quality degrades, reasoning appears capped/quantized, a user wants to run the 5-shot local Codex eval, or a user mentions the final "Intermediary updates" model-instruction section. No external artifact or project repository dependency is required.

Diagnose and remediate the local Codex gpt-5.5 shallow/quantized reasoning issue on Windows, macOS, or Linux. Use when codex exec returns wrong answers with suspicious reasoning_output_tokens such as 516, 1034, or 1552, or when applying and verifying the model_instructions_file workaround that removes the final Intermediary updates section from the effective base instructions.