Add Bmad-Method files and some brand-design artifacts!

2026-07-06 18:00:53 +01:00
parent 87bff9c251
commit 2b4a6a413c
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+#!/usr/bin/env python3
+# /// script
+# requires-python = ">=3.10"
+# ///
+"""memlog -- an append-only memory log: LLM-optimal working memory for a skill.
+
+A memlog is the dense, chronological record of everything that mattered in a piece of
+work -- every decision, direction, assumption, gap, note, and event as it happened --
+kept minimal like human memory: only what is important, never bloated. It persists
+ACROSS sessions, so a fresh session can load it once and continue. It is NOT a
+deliverable; downstream artifacts (a brief, a PRD, a report) are derived from it on
+demand.
+
+It is a FLAT log: there are no sections or grouping. Every entry is one line, recorded
+at the END in the order it happened. The chronology itself is the structure.
+
+Two invariants make it trustworthy:
+
+  1. Append-only, chronological. Entries land at the end, in the order they happen.
+     Nothing is ever inserted backward, reordered, edited, or removed. There is no
+     edit or delete subcommand by design; history is never rewritten.
+  2. Write-only / blind. Every command is an atomic, context-free write and echoes the
+     new state as one line of JSON, so the caller never re-reads the file mid-session.
+     The one time the file is read is on resume, and the caller reads it itself, not
+     via this script.
+
+Atomicity: every write goes to a temp file, is flushed and fsync'd, then atomically
+renamed over the target, so a crash never leaves a half-written entry.
+
+The file shape (.memlog.md):
+
+    ---
+    subject: Onboarding flow for a budgeting app
+    status: active
+    updated: 2026-06-06T14:22
+    ---
+
+    - (note) user picked the lean draft path
+    - (decision) lead with one pre-categorized account; defer multi-account import
+    - (direction) optimize for the anxious first-timer, not the power user
+    - (assumption) open-banking consent is available in the target market
+    - (gap) no data yet on week-1 retention baseline
+    - (event) ran baseline eval mode
+
+Each entry carries a typed tag drawn from a fixed vocabulary so the chronology stays
+machine-scannable: decision, direction, assumption, gap, note, event.
+
+Commands:
+  init         --path FILE [--field k=v ...]                create the memlog (errors if it exists)
+  append       --path FILE --type T --text STR             append one typed entry at the end
+  set-complete --path FILE                                 flip frontmatter status to complete
+
+The path is the memlog file itself (conventionally {run-folder}/.memlog.md).
+"""
+import argparse
+import json
+import os
+import sys
+from datetime import datetime
+from pathlib import Path
+
+ENTRY_TYPES = ("decision", "direction", "assumption", "gap", "note", "event")
+
+
+def now() -> str:
+    return datetime.now().strftime("%Y-%m-%dT%H:%M")
+
+
+def split(text: str) -> tuple[dict, str]:
+    """Return (frontmatter dict in source order, body str). Frontmatter is plain key: value.
+
+    The closing fence is the first line that is *exactly* `---`, so a `---` inside a
+    field value (subject is free user text) never truncates the frontmatter.
+    """
+    lines = text.splitlines()
+    if not lines or lines[0] != "---":
+        raise ValueError(".memlog.md has no frontmatter")
+    end = next((i for i in range(1, len(lines)) if lines[i] == "---"), None)
+    if end is None:
+        raise ValueError(".memlog.md frontmatter is not terminated")
+    meta: dict[str, str] = {}
+    for line in lines[1:end]:
+        if ":" in line:
+            k, v = line.split(":", 1)
+            meta[k.strip()] = v.strip()
+    return meta, "\n".join(lines[end + 1:]).lstrip("\n")
+
+
+def render(meta: dict, body: str) -> str:
+    # Neutralize newlines in values so a multi-line field can't break the fence on re-read.
+    fm = "\n".join(f"{k}: {' '.join(str(v).splitlines())}" for k, v in meta.items())
+    return "---\n" + fm + "\n---\n\n" + body.rstrip("\n") + "\n"
+
+
+def touch(meta: dict) -> None:
+    """Stamp `updated` and keep it last so the field order stays predictable."""
+    meta.pop("updated", None)
+    meta["updated"] = now()
+
+
+def write_atomic(path: Path, text: str) -> None:
+    """Temp + flush + fsync + atomic rename, so a crash never half-writes an entry."""
+    tmp = path.with_suffix(path.suffix + ".tmp")
+    with open(tmp, "w", encoding="utf-8") as f:
+        f.write(text)
+        f.flush()
+        os.fsync(f.fileno())
+    os.replace(tmp, path)
+
+
+def entry_count(body: str) -> int:
+    return sum(1 for ln in body.splitlines() if ln.startswith("- "))
+
+
+def ack(path: Path, meta: dict, body: str, entry_type: str = "") -> None:
+    """Echo new state so the caller never re-reads the file to know where it stands."""
+    out = {
+        "ok": True,
+        "memlog": str(path),
+        "status": meta.get("status", ""),
+        "n": entry_count(body),
+    }
+    if entry_type:
+        out["type"] = entry_type
+    print(json.dumps(out))
+
+
+def cmd_init(args) -> int:
+    path = Path(args.path)
+    if path.exists():
+        print(f"error: {path} already exists; use append/set-complete to update it", file=sys.stderr)
+        return 2
+    path.parent.mkdir(parents=True, exist_ok=True)
+    meta: dict[str, str] = {}
+    for pair in args.field or []:
+        if "=" not in pair:
+            print(f"error: --field expects key=value, got {pair!r}", file=sys.stderr)
+            return 2
+        k, v = pair.split("=", 1)
+        meta[k.strip()] = v.strip()
+    meta.setdefault("status", "active")
+    touch(meta)
+    write_atomic(path, render(meta, ""))
+    ack(path, meta, "")
+    return 0
+
+
+def cmd_append(args) -> int:
+    path = Path(args.path)
+    if args.type not in ENTRY_TYPES:
+        print(f"error: --type must be one of {', '.join(ENTRY_TYPES)}; got {args.type!r}", file=sys.stderr)
+        return 2
+    meta, body = split(path.read_text(encoding="utf-8"))
+    text = " ".join(args.text.split())  # collapse newlines/runs -> one-line entry
+    entry = f"- ({args.type}) {text}"
+    body = (body.rstrip("\n") + "\n" + entry) if body.strip() else entry  # always at the end
+    touch(meta)
+    write_atomic(path, render(meta, body))
+    ack(path, meta, body, args.type)
+    return 0
+
+
+def cmd_set_complete(args) -> int:
+    path = Path(args.path)
+    meta, body = split(path.read_text(encoding="utf-8"))
+    meta["status"] = "complete"
+    touch(meta)
+    write_atomic(path, render(meta, body))
+    ack(path, meta, body)
+    return 0
+
+
+def main(argv: list[str] | None = None) -> int:
+    p = argparse.ArgumentParser(description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter)
+    sub = p.add_subparsers(dest="cmd", required=True)
+
+    pi = sub.add_parser("init", help="create the memlog")
+    pi.add_argument("--path", required=True, help="memlog file path (e.g. {run-folder}/.memlog.md)")
+    pi.add_argument("--field", action="append", metavar="KEY=VALUE", help="frontmatter field (repeatable)")
+    pi.set_defaults(func=cmd_init)
+
+    pa = sub.add_parser("append", help="append one typed entry at the end")
+    pa.add_argument("--path", required=True)
+    pa.add_argument("--type", required=True, choices=ENTRY_TYPES, help="entry kind")
+    pa.add_argument("--text", required=True)
+    pa.set_defaults(func=cmd_append)
+
+    pc = sub.add_parser("set-complete", help="flip frontmatter status to complete")
+    pc.add_argument("--path", required=True)
+    pc.set_defaults(func=cmd_set_complete)
+
+    args = p.parse_args(argv)
+    return args.func(args)
+
+
+if __name__ == "__main__":
+    sys.exit(main())