Initial commit — split out from cli_utils

Producer-side MemPalace tooling: two bash wrappers that bridge opencode
session history and project documentation into the palace. Originally
developed in cli_utils (2026-04-28); split into its own repo on
2026-04-30 because the conceptual fit was weak — cli_utils is
interactive shell tooling, while this is agent memory infrastructure
with its own architecture, dependency surface, and growth trajectory.

Contents:
- bin/mempalace-docs — docs-only mining wrapper (originally a2ddcc9 in
  cli_utils), bridges the gap until MemPalace PR #1213 (exclude_patterns)
  merges upstream.
- bin/mempalace-session — opencode → palace session bridge (originally
  dacca0e in cli_utils). Reads ~/.local/share/opencode/opencode.db,
  exports each session to Claude Code JSONL, mines via
  'mempalace mine --mode convos'. Bridges the gap until opencode
  session-stopping hooks + an opencode harness in hooks_cli.py land
  upstream.
- ARCHITECTURE.md — canonical spec: architecture diagram, component
  details, setup recipe, operational notes, upstream-retirement
  roadmap. Originally a4cf314 in cli_utils.
- SKILL.md — companion agent skill (producer side). Pairs with the
  consumer-side mempalace skill. Symlinked into
  ~/.agents/skills/opencode-mempalace-bridge/ by install.sh.
- install.sh — idempotent installer, also handles --uninstall.
- AGENTS.md — repo conventions.

History of the individual files is not preserved in this split; see
cli_utils (gitea.jordbo.se/joakimp/cli_utils) commits a2ddcc9, dacca0e,
and a4cf314 for the original authorship context.
This commit is contained in:
Joakim Persson
2026-04-30 05:30:04 +00:00
commit 954c3f2ebb
8 changed files with 1438 additions and 0 deletions
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#!/usr/bin/env bash
# mempalace-docs — mine a project into MemPalace with docs-only filtering
#
# Works around the fact that upstream `mempalace mine` has a hardcoded
# READABLE_EXTENSIONS list that includes .py / .ts / .js / .go / .rs etc,
# which pollutes the palace with low-signal code-fragment drawers.
#
# Strategy: stage a copy of only docs/config/script files into /tmp, then
# run `mempalace mine` against that staging dir. Wing is derived from the
# source directory name (override with --wing).
#
# Once MemPalace PR #1213 (exclude_patterns in mempalace.yaml) lands, this
# wrapper becomes a thin shim over `mempalace mine` with a default
# exclude_patterns injected.
#
# Usage:
# mempalace-docs <directory>
# mempalace-docs <directory> --wing <name>
# mempalace-docs <directory> --agent <name>
# mempalace-docs <directory> --dry-run
# mempalace-docs --help
#
# Exit codes:
# 0 success
# 1 usage / argument error
# 2 source directory missing
# 3 mempalace CLI not installed
# 4 mine failed
#
# Dependencies: bash, find, cp, mempalace (v3.3.3+)
set -euo pipefail
# ── Defaults ─────────────────────────────────────────────────────────
AGENT="${USER:-mempalace}"
WING=""
SRC=""
DRY_RUN=0
NO_REPAIR=0
# File patterns to include. Docs + config + intent-bearing scripts.
# Everything else (code) is excluded by omission.
INCLUDE_GLOBS=(
'*.md' '*.mdx' '*.rst' '*.txt'
'*.yml' '*.yaml' '*.toml'
'*.json' # includes package.json, pyproject companions; lockfiles filtered below
'*.sh' '*.bash' '*.zsh' '*.fish'
'Dockerfile*' 'Makefile*' 'Containerfile*'
'*.conf' '*.cfg' '*.ini'
'LICENSE*' 'COPYING*' 'NOTICE*' 'AUTHORS*' 'CONTRIBUTORS*'
)
# Path segments to always skip (in addition to .gitignore).
SKIP_DIRS=(
'.git' '.venv' 'venv' '__pycache__' 'node_modules'
'.mypy_cache' '.pytest_cache' '.ruff_cache' '.tox' '.nox'
'dist' 'build' '.next' '.nuxt' 'target' 'coverage'
'.DS_Store'
)
# Filename patterns to skip even if caught by an include glob.
SKIP_FILES=(
'package-lock.json' 'yarn.lock' 'pnpm-lock.yaml' 'poetry.lock'
'Cargo.lock' 'Gemfile.lock' 'composer.lock'
'.gitignore' '.dockerignore'
)
# ── Usage ────────────────────────────────────────────────────────────
usage() {
cat <<'EOF'
mempalace-docs — mine a project into MemPalace, docs/config/scripts only
Usage:
mempalace-docs <directory> [options]
Options:
--wing <name> Override wing name (default: source directory name)
--agent <name> Agent name recorded on drawers (default: $USER)
--dry-run List files that would be mined; do not file
--no-repair Skip `mempalace repair` after mining
-h, --help Show this help
What gets mined:
Docs: *.md *.mdx *.rst *.txt
Config: *.yml *.yaml *.toml *.json *.conf *.cfg *.ini
Scripts: *.sh *.bash *.zsh *.fish Dockerfile* Makefile*
Legal: LICENSE* COPYING* NOTICE* AUTHORS*
What gets skipped (by design):
Source code: .py .ts .tsx .js .jsx .go .rs .java .cpp .c .rb .kt .swift
Caches / deps: .git .venv venv node_modules __pycache__ .mypy_cache
.pytest_cache .ruff_cache dist build .next target coverage
Lockfiles: package-lock.json yarn.lock poetry.lock Cargo.lock ...
Rationale:
The palace is for context and intent. Agents read code directly via
grep/glob/Read — mining it creates a parallel, lossier, drift-prone
copy that pollutes semantic search.
This wrapper is a bridge until MemPalace PR #1213 (exclude_patterns)
lands upstream.
EOF
}
# ── Parse args ───────────────────────────────────────────────────────
while [[ $# -gt 0 ]]; do
case "$1" in
-h|--help) usage; exit 0 ;;
--wing) WING="${2:-}"; shift 2 ;;
--agent) AGENT="${2:-}"; shift 2 ;;
--dry-run) DRY_RUN=1; shift ;;
--no-repair) NO_REPAIR=1; shift ;;
--) shift; break ;;
-*) echo "error: unknown option: $1" >&2; usage >&2; exit 1 ;;
*) if [[ -z "$SRC" ]]; then SRC="$1"; shift; else echo "error: unexpected arg: $1" >&2; exit 1; fi ;;
esac
done
if [[ -z "$SRC" ]]; then usage >&2; exit 1; fi
if [[ ! -d "$SRC" ]]; then
echo "error: not a directory: $SRC" >&2; exit 2
fi
if ! command -v mempalace >/dev/null 2>&1; then
echo "error: mempalace CLI not found in PATH" >&2; exit 3
fi
SRC="$(cd "$SRC" && pwd)"
# Determine wing name with the following precedence:
# 1. explicit --wing flag (user override)
# 2. `wing:` value in $SRC/mempalace.yaml (respect existing project config)
# 3. sanitized source directory basename (hyphens → underscores, matching
# mempalace's convention for implicit wing names)
if [[ -z "$WING" && -f "$SRC/mempalace.yaml" ]]; then
WING="$(awk -F': *' '/^wing:/ { gsub(/["\x27 ]/,"",$2); print $2; exit }' "$SRC/mempalace.yaml" 2>/dev/null || true)"
fi
if [[ -z "$WING" ]]; then
WING="$(basename "$SRC" | tr '-' '_')"
fi
# ── Build staging directory ──────────────────────────────────────────
# Use a deterministic, per-wing cache path so re-runs produce the same
# source_file paths the miner saw last time. This is critical: mempalace
# dedup keys on source_file + source_mtime, so a mktemp path would cause
# every run to re-file the entire wing.
CACHE_ROOT="${XDG_CACHE_HOME:-$HOME/.cache}/mempalace-docs"
STAGE="$CACHE_ROOT/$WING"
mkdir -p "$CACHE_ROOT"
rm -rf "$STAGE"
mkdir -p "$STAGE"
# Only clean up the per-wing stage on exit — leave $CACHE_ROOT itself
# alone in case other wings are staging concurrently.
trap 'rm -rf "$STAGE"' EXIT INT TERM
# Build find expression
find_cmd=(find "$SRC" -type f)
# Prune unwanted dirs
for d in "${SKIP_DIRS[@]}"; do
find_cmd+=('!' -path "*/$d/*" '!' -path "*/$d")
done
# Include only matching names
find_cmd+=('(' -false)
for g in "${INCLUDE_GLOBS[@]}"; do
find_cmd+=('-o' '-name' "$g")
done
find_cmd+=(')')
# Gather matches, then filter skip_files
mapfile -t matches < <("${find_cmd[@]}")
filtered=()
for f in "${matches[@]}"; do
base="$(basename "$f")"
skip=0
for sf in "${SKIP_FILES[@]}"; do
if [[ "$base" == "$sf" ]]; then skip=1; break; fi
done
[[ $skip -eq 0 ]] && filtered+=("$f")
done
count="${#filtered[@]}"
if [[ $count -eq 0 ]]; then
echo "no matching files found in $SRC" >&2
exit 0
fi
if [[ $DRY_RUN -eq 1 ]]; then
echo "Would mine $count files into wing '$WING':"
printf ' %s\n' "${filtered[@]}" | sed "s#^ $SRC/# #"
exit 0
fi
# Copy into staging, preserving mtime (critical for mempalace dedup —
# the miner compares stored mtime against the staged copy's mtime).
for f in "${filtered[@]}"; do
rel="${f#$SRC/}"
dest="$STAGE/$rel"
mkdir -p "$(dirname "$dest")"
cp -p "$f" "$dest"
done
# Purge any drawers in this wing that came from the original source
# directory. The miner records source_file = absolute path from the
# staging dir; this differs from a prior `mempalace mine <source>` run,
# so without this purge the wing would accumulate duplicates every time
# we switch between upstream `mempalace mine` and this wrapper.
# We only purge source_file paths matching $SRC/*, leaving other wings
# and other sources alone.
python3 - "$WING" "$SRC" <<'PY'
import sqlite3, sys, os
wing, src = sys.argv[1], sys.argv[2].rstrip("/")
db_path = os.path.expanduser("~/.mempalace/palace/chroma.sqlite3")
if not os.path.exists(db_path):
sys.exit(0)
db = sqlite3.connect(db_path)
cur = db.cursor()
# Find embedding ids in target wing whose source_file is under $SRC/
q = """
SELECT DISTINCT w.id
FROM embedding_metadata w
JOIN embedding_metadata s ON w.id = s.id AND s.key = 'source_file'
WHERE w.key = 'wing'
AND w.string_value = ?
AND (s.string_value LIKE ? OR s.string_value LIKE ?)
"""
pats = (f"{src}/%", f"{src}")
ids = [r[0] for r in cur.execute(q, (wing, pats[0], pats[1]))]
if ids:
ph = ",".join("?" * len(ids))
for tbl in ("embedding_metadata", "embeddings"):
try:
cur.execute(f"DELETE FROM {tbl} WHERE id IN ({ph})", ids)
except sqlite3.OperationalError:
pass
db.commit()
print(f" purged {len(ids)} pre-existing drawers for {src} from wing '{wing}'")
db.close()
PY
# Write mempalace.yaml into staging dir so the miner uses the right wing
cat > "$STAGE/mempalace.yaml" <<EOF
wing: $WING
rooms:
- name: general
description: Docs, config, and scripts from $WING
keywords: [general]
EOF
echo "Staging $count files into wing '$WING'..."
# ── Run the mine ─────────────────────────────────────────────────────
if ! mempalace mine "$STAGE" --agent "$AGENT" --wing "$WING"; then
echo "error: mempalace mine failed" >&2
exit 4
fi
# ── Repair index ─────────────────────────────────────────────────────
if [[ $NO_REPAIR -eq 0 ]]; then
echo ""
echo "Rebuilding HNSW index..."
mempalace repair --yes
fi
echo ""
echo "Done. Wing '$WING' is ready. Remember to reconnect any live MCP sessions."
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#!/usr/bin/env bash
# mempalace-session — mine opencode session history into MemPalace
#
# Opencode persists every session (verbatim user/assistant turns + tool calls)
# in a local SQLite DB at ~/.local/share/opencode/opencode.db. There is
# currently no opencode session-stopping hook upstream, so the diary-based
# auto-save is best-effort; this wrapper closes the gap by mining the SQLite
# directly.
#
# Strategy:
# 1. Read opencode.db and export each qualifying session to a Claude Code
# JSONL file (format the mempalace normalizer already understands).
# 2. Stage exports under ~/.cache/mempalace-session/<wing>/.
# 3. Run `mempalace mine --mode convos` against the staging dir.
#
# Dedup: mempalace convos mode keys on source_file (absolute staging path).
# The staging path is deterministic (per-wing under XDG_CACHE_HOME) so re-runs
# are idempotent as long as session content hasn't changed.
#
# Session filter: sessions with fewer than --min-messages messages (default 3)
# are skipped to avoid filing throwaway /exit'd sessions.
#
# Usage:
# mempalace-session
# mempalace-session --wing <name>
# mempalace-session --session <id>
# mempalace-session --since 2026-04-01
# mempalace-session --min-messages 6
# mempalace-session --dry-run
# mempalace-session --help
#
# Exit codes:
# 0 success
# 1 usage / argument error
# 2 opencode.db missing or unreadable
# 3 mempalace CLI not installed
# 4 mine failed
#
# Dependencies: bash, python3 (stdlib sqlite3), mempalace (v3.3.3+)
set -euo pipefail
# ── Defaults ─────────────────────────────────────────────────────────
AGENT="${USER:-mempalace}"
WING="wing_conversations"
SESSION_ID=""
SINCE=""
MIN_MESSAGES=3
DRY_RUN=0
NO_REPAIR=0
OPENCODE_DB="${OPENCODE_DB:-$HOME/.local/share/opencode/opencode.db}"
# ── Usage ────────────────────────────────────────────────────────────
usage() {
cat <<'EOF'
mempalace-session — mine opencode session history into MemPalace
Usage:
mempalace-session [options]
Options:
--wing <name> Target wing (default: wing_conversations)
--session <id> Export one session only (default: all qualifying)
--since <YYYY-MM-DD> Only sessions with time_updated on/after this date
--min-messages <N> Skip sessions with fewer than N messages (default: 3)
--agent <name> Agent name recorded on drawers (default: $USER)
--db <path> Path to opencode.db (default: $OPENCODE_DB or
~/.local/share/opencode/opencode.db)
--dry-run Export + list; do not mine into palace
--no-repair Skip `mempalace repair` after mining
-h, --help Show this help
What gets mined:
- Each qualifying session → one Claude Code JSONL file
- Staged under ~/.cache/mempalace-session/<wing>/
- Filed via `mempalace mine --mode convos`
Transcript shape per session:
- Synthetic header as first user turn:
[session: <title> | <directory> | <YYYY-MM-DD>]
- User/assistant messages extracted from message.data + part.data
- Tool calls → Claude Code `tool_use` blocks
- Tool outputs → `tool_result` blocks (folded into the assistant turn by the
mempalace normalizer)
- `step-start` / `step-finish` parts are dropped (noise)
- `reasoning` parts prefixed with `[reasoning]` and kept as text
Dedup:
- source_file = absolute staging path (deterministic per session ID)
- Re-runs skip unchanged sessions. To force re-mining, delete the staging
dir: rm -rf ~/.cache/mempalace-session/<wing>/
Rationale:
Opencode lacks a session-stopping hook (upstream PRs #16598, #16769 still
open). Until that lands + mempalace hooks_cli.py gains an opencode harness,
this wrapper is how we get automatic session capture.
EOF
}
# ── Parse args ───────────────────────────────────────────────────────
while [[ $# -gt 0 ]]; do
case "$1" in
-h|--help) usage; exit 0 ;;
--wing) WING="${2:-}"; shift 2 ;;
--session) SESSION_ID="${2:-}"; shift 2 ;;
--since) SINCE="${2:-}"; shift 2 ;;
--min-messages) MIN_MESSAGES="${2:-}"; shift 2 ;;
--agent) AGENT="${2:-}"; shift 2 ;;
--db) OPENCODE_DB="${2:-}"; shift 2 ;;
--dry-run) DRY_RUN=1; shift ;;
--no-repair) NO_REPAIR=1; shift ;;
--) shift; break ;;
-*) echo "error: unknown option: $1" >&2; usage >&2; exit 1 ;;
*) echo "error: unexpected arg: $1" >&2; exit 1 ;;
esac
done
# ── Preflight ────────────────────────────────────────────────────────
if [[ ! -f "$OPENCODE_DB" ]]; then
echo "error: opencode.db not found at $OPENCODE_DB" >&2
echo " override with --db <path> or OPENCODE_DB env var" >&2
exit 2
fi
if ! command -v mempalace >/dev/null 2>&1; then
echo "error: mempalace CLI not found in PATH" >&2
exit 3
fi
if ! [[ "$MIN_MESSAGES" =~ ^[0-9]+$ ]]; then
echo "error: --min-messages must be an integer" >&2
exit 1
fi
# ── Staging dir ──────────────────────────────────────────────────────
# Deterministic per-wing path so source_file dedup works across re-runs.
CACHE_ROOT="${XDG_CACHE_HOME:-$HOME/.cache}/mempalace-session"
STAGE="$CACHE_ROOT/$WING"
mkdir -p "$STAGE"
# ── Export sessions (Python heredoc) ────────────────────────────────
# Writes one JSONL file per qualifying session into $STAGE.
# Prints: EXPORTED <count> on stdout, plus per-session lines.
export_count=$(python3 - "$OPENCODE_DB" "$STAGE" "$SESSION_ID" "$SINCE" "$MIN_MESSAGES" <<'PY'
import sqlite3, json, sys, os
from datetime import datetime, timezone
from pathlib import Path
db_path, stage, session_filter, since, min_messages = sys.argv[1:6]
min_messages = int(min_messages)
stage = Path(stage)
# Convert --since YYYY-MM-DD to epoch ms (opencode uses ms timestamps)
since_ms = None
if since:
try:
since_ms = int(datetime.strptime(since, "%Y-%m-%d").replace(tzinfo=timezone.utc).timestamp() * 1000)
except ValueError:
print(f"error: --since must be YYYY-MM-DD, got {since!r}", file=sys.stderr)
sys.exit(1)
conn = sqlite3.connect(f"file:{db_path}?mode=ro", uri=True)
conn.row_factory = sqlite3.Row
cur = conn.cursor()
# Select sessions
q = "SELECT * FROM session WHERE 1=1"
params = []
if session_filter:
q += " AND id = ?"
params.append(session_filter)
if since_ms is not None:
q += " AND time_updated >= ?"
params.append(since_ms)
q += " ORDER BY time_updated"
cur.execute(q, params)
sessions = [dict(r) for r in cur.fetchall()]
if not sessions:
print("EXPORTED 0")
sys.exit(0)
# Prefetch messages + parts for qualifying sessions
exported = 0
skipped_short = 0
for sess in sessions:
sid = sess["id"]
cur.execute("SELECT COUNT(*) FROM message WHERE session_id=?", (sid,))
msg_count = cur.fetchone()[0]
if msg_count < min_messages:
skipped_short += 1
continue
cur.execute(
"SELECT * FROM message WHERE session_id=? ORDER BY time_created", (sid,)
)
messages = [dict(r) for r in cur.fetchall()]
cur.execute(
"SELECT * FROM part WHERE session_id=? ORDER BY time_created", (sid,)
)
parts_by_msg: dict[str, list] = {}
for r in cur.fetchall():
d = dict(r)
parts_by_msg.setdefault(d["message_id"], []).append(d)
# Build JSONL lines
out_lines: list[dict] = []
# Synthetic header as first user turn — injects title/directory/date
# into the transcript so semantic search can find sessions by topic,
# not just by session-id filename.
title = sess.get("title") or "(untitled)"
directory = sess.get("directory") or "?"
date_str = datetime.fromtimestamp(
sess["time_created"] / 1000, tz=timezone.utc
).strftime("%Y-%m-%d")
header = f"[session: {title} | {directory} | {date_str}]"
out_lines.append({"type": "user", "message": {"content": header}})
for msg in messages:
mdata = json.loads(msg["data"])
role = mdata.get("role")
if role not in ("user", "assistant"):
continue
parts = parts_by_msg.get(msg["id"], [])
blocks = []
tool_results = []
for p in parts:
try:
pd = json.loads(p["data"])
except json.JSONDecodeError:
continue
t = pd.get("type")
if t == "text":
txt = (pd.get("text") or "").strip()
if txt:
blocks.append({"type": "text", "text": txt})
elif t == "tool":
# opencode tool part → tool_use block + deferred tool_result
state = pd.get("state") or {}
tool_name = pd.get("tool") or "Unknown"
call_id = pd.get("callID") or p["id"]
tool_input = state.get("input") or {}
tool_output = state.get("output")
blocks.append({
"type": "tool_use",
"id": call_id,
"name": tool_name,
"input": tool_input,
})
if tool_output:
tool_results.append({
"type": "tool_result",
"tool_use_id": call_id,
"content": str(tool_output),
})
elif t in ("step-start", "step-finish"):
continue
elif t == "reasoning":
rtext = (pd.get("text") or "").strip()
if rtext:
blocks.append({"type": "text", "text": f"[reasoning] {rtext}"})
if not blocks:
continue
# Simplify single-text-block messages to a bare string (more tolerant
# of normalizer edge cases; mempalace accepts either shape).
if len(blocks) == 1 and blocks[0]["type"] == "text":
content = blocks[0]["text"]
else:
content = blocks
out_lines.append({
"type": role,
"message": {"content": content},
})
# For assistants, follow up with a synthetic human tool_result message
# per tool call. The mempalace normalizer's `is_tool_only` branch
# folds these back into the assistant turn (see normalize.py:211-214).
if role == "assistant" and tool_results:
out_lines.append({
"type": "human",
"message": {"content": tool_results},
})
# Must have at least 2 turns for the normalizer to accept the file
if len(out_lines) < 2:
skipped_short += 1
continue
slug = sess.get("slug") or "session"
out_path = stage / f"{slug}_{sid}.jsonl"
with open(out_path, "w", encoding="utf-8") as f:
for obj in out_lines:
f.write(json.dumps(obj, ensure_ascii=False) + "\n")
# Set mtime to session time_updated so dedup sees a stable value.
try:
ts = sess["time_updated"] / 1000
os.utime(out_path, (ts, ts))
except Exception:
pass
exported += 1
print(f" {out_path.name} ({msg_count} msgs, {len(out_lines)} turns)",
file=sys.stderr)
print(f"EXPORTED {exported}")
if skipped_short:
print(f"SKIPPED_SHORT {skipped_short}", file=sys.stderr)
PY
)
# Parse count from stdout
count="${export_count##*EXPORTED }"
count="${count%%[!0-9]*}"
count="${count:-0}"
if [[ "$count" -eq 0 ]]; then
echo "no sessions qualified for export"
exit 0
fi
echo ""
echo "Exported $count session(s) to $STAGE"
if [[ $DRY_RUN -eq 1 ]]; then
echo "--dry-run: skipping mine step"
exit 0
fi
# ── Run the mine ─────────────────────────────────────────────────────
echo ""
echo "Mining into wing '$WING'..."
if ! mempalace mine "$STAGE" --mode convos --wing "$WING" --agent "$AGENT"; then
echo "error: mempalace mine failed" >&2
exit 4
fi
# ── Repair index ─────────────────────────────────────────────────────
if [[ $NO_REPAIR -eq 0 ]]; then
echo ""
echo "Rebuilding HNSW index..."
mempalace repair --yes
fi
echo ""
echo "Done. Wing '$WING' updated. Remember to reconnect any live MCP sessions."