feat: tail-load global RULES.md into per-turn prompt#3
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Introduce read_global_rules() in openfang-types::config that reads $OPENFANG_HOME/RULES.md, trims it, and returns None if absent or blank. Output is truncated to RULES_MD_MAX_CHARS (2000) so a runaway file can't balloon the system prompt. Companion to the per-turn reload path: the kernel calls this on every turn so edits to RULES.md land on the next message without restart. Includes 4 unit tests: missing file, empty/whitespace, present, oversized.
Adds Option<String> rules_md alongside context_md. Field is per-turn reloadable; the kernel will populate it from read_global_rules() on each turn. Default is None so existing call sites keep compiling via #[derive(Default)].
Insert a new ## Global Rules (RULES.md) section into build_system_prompt between Workspace Context (14) and Live Context (15). The framing makes the rules authoritative over earlier guidance, with one explicit carveout: the Safety section above remains non-negotiable. Section is elided when ctx.rules_md is None or trims to empty so the prompt stays clean for users who never write a RULES.md. Includes 4 unit tests covering presence, blank/None elision, ordering relative to Safety + Live Context, and subagent inheritance.
Populate PromptContext.rules_md via openfang_types::config::read_global_rules() at both PromptContext construction sites in kernel.rs. Re-read on every turn alongside context_md so edits to ~/.openfang/RULES.md take effect on the very next message — no daemon restart required.
- docs/global-rules.md: full reference for the per-turn RULES.md overlay — contract, position in the system prompt (14.5), authority + Safety carveout, subagent inheritance, gotchas, worked example. - docs/templates/RULES.md.example: starter template with common patterns (style preferences, channel etiquette, escalation rules) all commented out so users uncomment what they want. - docs/README.md: index updated under Getting Started and Important Paths.
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Summary
Adds a per-turn loader for
~/.openfang/RULES.mdthat appends user-defined global rules to every agent's system prompt. Hot-reloadable (re-read each turn), 2KB cap, missing file = no-op.Commit chain
d1271c4feat(types): addread_global_rules()loader with 2KB cap3746232feat(runtime): addrules_mdfield toPromptContext20e022ffeat(runtime): render RULES.md section at position 14.5 (after Workspace Context, before Safety override line)7ba629bfeat(kernel): wire RULES.md loader into per-turn prompt buildfd497d5docs: document global RULES.md mechanism + example template (docs/global-rules.md,docs/templates/RULES.md.example)Behavior
~/.openfang/RULES.mdtake effect on the next message, no daemon restart.Test plan
- Always end responses with 🦊in~/.openfang/RULES.md, sent message to coder-openfang, rule was respected on next turn.🤖 Generated with Claude Code