Add nsbx — the Neuron Sandbox primitive

Generalise the ad-hoc cog-arch (worktree+build+store-clone+C-tests) and
store-fix (secondary soul + launchctl rails cutover) proto-sandboxes into one
reproducible primitive: run experiments and code changes against the REAL
engram runtime on an isolated snapshot of the live mind, with a gated
promote-to-prod path.

Dev environment as a primitive — any team member gets a private, isolated copy
of the mind (separate port/store/process); prod on :8742/:7770 is untouchable
from a sandbox. Wraps the real binary; never reimplements engram logic.

Lifecycle: create/up (consistent store+WAL+config snapshot; place OR build the
runtime from --source/--branch/--binary; boot on an isolated port) · build ·
run · validate (rails as checks: zero-loss under load+reboot, reboot-prove, RSS
bound, retrieval parity, keystone integrity) · promote (gated rails cutover:
snapshot-first, additive binary swap, bootout→settle-poll→bootstrap, verify,
auto-rollback; never pkill/kickstart -k; dry-run unless approved) · destroy.

Dogfooded: reproduced retrieval-parity 25/25 vs baseline and the cog-arch
correspondence-loop known result (Brier 0.028648->0.000586, reboot-proven) and
real-store reboot-prove at 10994-node scale, all inside a sandbox; prod
untouched.
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# nsbx — the Neuron Sandbox
**Dev environment as a primitive.** A reproducible way to run experiments *and code
changes* against the **real** engram runtime on an isolated snapshot of the live
mind — with a gated promote-to-prod path built on the proven rails.
Everyone (Tim, any team member, any agent) gets their own private, safe copy of the
mind to build against. **Prod — the live Neuron on `:8742` (engram) / `:7770`
(soul) — is untouchable from a sandbox.** A sandbox runs a *separate* engram
process, on a *separate* port, against a *separate* clone of the store. The only op
that can ever reach prod is `promote`, which is explicit, gated, and per-use
approved.
It **wraps the real engram binary** — it never reimplements any engram logic. It
generalises two proven proto-sandboxes into one primitive:
- the **cog-arch** build — isolated git worktree + build + clone of the live `.egm` + real C tests
- the **store-fix** cutover — secondary soul + launchctl `bootout → settle → bootstrap` rails
## Quickstart
```bash
export PATH="$PWD:$PATH" # or symlink nsbx onto your PATH
nsbx up # your private copy of the mind (auto-named <user>-dev)
nsbx run <name> api /api/stats # poke it
nsbx validate <name> # prove it: zero-loss, reboot, RSS, retrieval, keystones
nsbx destroy <name> # cheap teardown; live untouched
```
That is the whole loop. Sane defaults: stock prod binary, auto-allocated port
(`8900+`, never `8742`/`7770`), snapshot of the live store.
## The code-change dev loop (first-class)
Run *your changed runtime*, not just the stock binary, against a snapshot:
```bash
# build a runtime from a working tree, a git branch, or a prebuilt binary:
nsbx create feat --source /path/to/worktree # elc + cc build from source
nsbx create feat --branch feat/my-change --repo <r> # worktree the branch, then build
nsbx create feat --binary /path/to/engram # use a prebuilt binary
nsbx build feat --source /path/to/worktree # rebuild + hot-restart in place
nsbx validate feat # prove the change is safe
nsbx promote feat --i-approve-prod-cutover # gated rails cutover (see below)
```
The build replicates the engram release recipe exactly:
`elc engram/src/server.el > engram.c` then
`cc -std=c11 -O2 -I lang/runtime engram.c el_runtime.c engram_*.c -lcurl -lpthread`.
## Lifecycle
| op | what it does |
|----|--------------|
| `create <name> [--port N] [--source\|--branch\|--binary]` | consistent snapshot of the live store+WAL+config into an isolated dir; place or **build** the runtime; boot the real engram daemon on an isolated port. Named, versioned (binary sha + egm sha in `manifest.json`), reproducible. |
| `up [name]` | one command: create-if-missing then start; prints the URL. |
| `build <name> --source\|--branch` | rebuild the runtime from a code change and hot-restart on the same clone+port. |
| `run <name> <cmd…>` / `run <name> api <path> [json]` | run an experiment against the real runtime; capture output + before/after stats + wall time. Env: `$SBX_URL $SBX_PORT $SBX_KEY $SBX_DATA $SBX_BIN`. |
| `validate <name>` | the rails as first-class checks (below). |
| `promote <name> [--data] [--i-approve-prod-cutover]` | **the only prod-touching op.** Gated rails cutover. DRY-RUN plan unless approved. |
| `destroy <name>` | stop the isolated daemon, free the port, remove the clone. Live untouched. |
| `list` / `status <name>` | inspect. |
## `validate` — the rails as checks
- **zero-loss-under-load** — node/edge counts hold at/above baseline through ~15s of sustained tick+read load
- **reboot-prove** — counts survive a real stop→start of the daemon
- **rss-bound** — daemon RSS under `NSBX_RSS_BOUND_MB` (default 550 MB, from the store-fix reboot-proof)
- **retrieval-parity** — top-k node ids for a fixed probe set match the create-time baseline
- **keystone-integrity** — `kn-efeb4a5b…` and `kn-5b606390…` present and intact
A PASS writes `validate.json` stamped with the binary sha; `promote` refuses unless
the current binary has a fresh PASS on record.
## `promote` — gated cutover (rails only)
Default is a **dry-run plan**. With `--i-approve-prod-cutover` it, in order:
1. **snapshot-first** — back up live `egm`+`wal`+`plist` to `~/.neuron/backups/promote-<name>-<ts>/` with a `rollback.txt`
2. **additive** binary install — copy the validated binary to a *new* file, update the plist `ENGRAM_REAL_BIN` (old binary retained — additive/supersede, never destructive)
3. **rails cutover**`launchctl bootout`**settle-poll** (prints until the job is gone) → `launchctl bootstrap`. Never `pkill`, never `kickstart -k`.
4. **verify**`/api/stats` returns, edges ≥ baseline, keystones intact
5. **auto-rollback armed** — any verify failure restores the plist (and data, if `--data`) and boots the prior binary back via the same rails
## Isolation guarantees
- separate **port** (`8900+`; refuses `8742`/`7770`), separate **store clone**, separate **process**
- a hard guard refuses to boot a sandbox daemon whose data dir resolves to the live store
- sandboxes are plain supervised background processes (not launchd), so teardown is a signal + settle-poll — it can never touch the prod launchd job
- prod is read exactly twice: once for the snapshot, and (only if you approve) during `promote`
## Layout
- tool: `tools/neuron-sandbox/nsbx` (this repo, branch `feat/neuron-sandbox`)
- runtime state: `~/.neuron/sandboxes/<name>/``data/` (clone), `bin/engram`, `build/`, `logs/`, `manifest.json`, `validate.json`, `baseline/`
## Validated (dogfood)
Standing up a sandbox from a live-store clone and reproducing a **known** result:
- **retrieval-parity 25/25** top-k id overlap vs baseline; sandbox boot-stats exactly matched the live baseline captured at snapshot time (10 672 nodes / 32 439 edges) — the wrapped real binary faithfully reloads the live mind
- reboot-prove + zero-loss PASS; RSS 379 MB < 550 MB; keystones intact
- the **cog-arch correspondence-loop** re-run *inside* the sandbox reproduced the known calibration numbers exactly: held-Brier **0.028648 → 0.000586** (98.0% reduction), monotone, **reboot bit-identical**, metastability holds; and the real-store Stance persistence reboot-proved at **10 994-node** scale (`think()` on real 768-dim embeddings) against a scratch copy of the sandbox's own clone — never live
- `promote` dry-run refused to touch prod; teardown freed the port; live `:8742`/`:7770` never perturbed (soul uptime unbroken)
## Migrating existing experiments
Each ad-hoc harness becomes `nsbx run <name> …` (or `--source` build) against a sandbox:
- **cog-arch** — `nsbx create x --source <worktree>` then `nsbx run x -- bash cogarch_dogfood.sh` (compiles + runs the real C cognition tests against `$SBX_DATA`)
- **codec / ingest / faculty** — `nsbx run x api /api/<endpoint> '<json>'` against the isolated daemon, or a script using `$SBX_URL`/`$SBX_KEY`; measure with the built-in before/after stats
## Env knobs
`NSBX_ROOT`, `NSBX_PORT_BASE`, `NSBX_RSS_BOUND_MB`, `NSBX_REMERGE_THRESHOLD`,
`EL_REPO` (for `elc` + runtime sources), `ENGRAM_LIVE_DATA_DIR`, `ENGRAM_LIVE_PLIST`.
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#!/usr/bin/env bash
# cog-arch correspondence-loop dogfood — RUN INSIDE the sandbox via `nsbx run`.
# Compiles the REAL engram C runtime + cognition tests and reproduces the known
# calibration result (memory 194c69c8): held-Brier 0.028648 -> 0.000586, reboot-proven,
# then reboot-proves the Stance persistence against a SCRATCH COPY of THIS sandbox's
# clone of the real store (never live, never the running daemon's file).
set -euo pipefail
WT="${COGARCH_WT:-/private/tmp/claude-501/-Users-will/6531446d-bc27-4095-930b-e04777c3db4f/scratchpad/cogarch-wt}"
RT="$WT/lang/runtime"; T="$WT/engram/test"
: "${SBX_DATA:?run me via: nsbx run <name> -- bash cogarch_dogfood.sh}"
B="$(mktemp -d)"
echo "### building cog-arch tests against the real engram runtime sources"
cc -std=c11 -O2 -w -I "$RT" -o "$B/test_cognition" \
"$T/test_cognition.c" "$RT/engram_cognition.c" "$RT/engram_reason.c" \
"$RT/engram_geometry.c" "$RT/engram_store.c" "$RT/engram_vindex.c" -lm
cc -std=c11 -O2 -w -I "$RT" -o "$B/test_realstore" \
"$T/test_cognition_realstore.c" "$RT/engram_cognition.c" "$RT/engram_reason.c" \
"$RT/engram_geometry.c" "$RT/engram_store.c" "$RT/engram_vindex.c" -lm
echo; echo "### [A] synthetic correspondence-loop (known: Brier 0.028648 -> 0.000586)"
"$B/test_cognition" | grep -E "held-Brier|reduction|reboot|monotone|metastab|RESULT" || true
echo; echo "### [B] reboot-prove Stance on a SCRATCH COPY of this sandbox's real-store clone"
SCRATCH="$B/store-clone"; mkdir -p "$SCRATCH"
cp -p "$SBX_DATA/neuron.egm" "$SCRATCH/" 2>/dev/null || true
cp -p "$SBX_DATA/neuron.wal" "$SCRATCH/" 2>/dev/null || true
cp -p "$SBX_DATA/conf" "$SCRATCH/" 2>/dev/null || true
cp -p "$SBX_DATA/meta.json" "$SCRATCH/" 2>/dev/null || true
"$B/test_realstore" "$SCRATCH" || true
rm -rf "$B"
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#!/usr/bin/env bash
# nsbx — the Neuron Sandbox: a reproducible primitive for running experiments and
# code changes against the REAL engram runtime on an isolated snapshot of the live
# mind, with a gated promote-to-prod path built on the proven rails.
#
# It WRAPS the real engram binary — it never reimplements any engram logic. The only
# prod-touching op is `promote`, which is explicit, gated, and per-use approved.
#
# Generalises two proven proto-sandboxes:
# - the cog-arch build (isolated git worktree + build + clone of live .egm + real C tests)
# - the store-fix cutover (secondary soul + launchctl bootout->settle->bootstrap rails)
#
# Lifecycle: create -> [build] -> run -> validate -> promote(gated) -> destroy
#
# Rails (always): built offline; NEVER auto-promotes; never touches live :8742/:7770
# except READ for the snapshot and the gated promote; snapshot-first; honest measured
# reporting. Cutover is launchctl bootout -> settle-poll -> bootstrap ONLY —
# never pkill, never kickstart -k.
set -uo pipefail
# ---------------------------------------------------------------- constants ----
LIVE_DATA_DIR="${ENGRAM_LIVE_DATA_DIR:-$HOME/.neuron/engram}"
LIVE_PLIST="${ENGRAM_LIVE_PLIST:-$HOME/Library/LaunchAgents/ai.neuron.engram.plist}"
LIVE_LABEL="ai.neuron.engram"
LIVE_BIND_PORT=8742 # engram — FORBIDDEN for sandboxes
SOUL_PORT=7770 # soul — FORBIDDEN for sandboxes
LIVE_KEY="${ENGRAM_API_KEY:-ntn-user-2026}"
LIVE_URL="http://127.0.0.1:${LIVE_BIND_PORT}"
SBX_ROOT="${NSBX_ROOT:-$HOME/.neuron/sandboxes}"
BACKUP_ROOT="$HOME/.neuron/backups"
EL_REPO="${EL_REPO:-$HOME/Development/neuron-technologies/foundation/el}"
PORT_BASE="${NSBX_PORT_BASE:-8900}"
RSS_BOUND_MB="${NSBX_RSS_BOUND_MB:-550}" # from store-fix reboot-proof (aaf13f88)
REMERGE_THRESHOLD="${NSBX_REMERGE_THRESHOLD:-40000}"
KEYSTONES=( "kn-efeb4a5b-5aff-4759-8a97-7233099be6ee" "kn-5b606390-a52d-4ca2-8e0e-eba141d13440" )
# fixed probe set for retrieval-parity (stable, identity-anchored)
PARITY_QUERIES=( "who am I" "self identity core" "engram store durability" "keystone self anchor" "grounding honesty" )
C_RED=$'\033[31m'; C_GRN=$'\033[32m'; C_YEL=$'\033[33m'; C_DIM=$'\033[2m'; C_BLD=$'\033[1m'; C_0=$'\033[0m'
# ---------------------------------------------------------------- helpers ------
die(){ printf '%serror:%s %s\n' "$C_RED" "$C_0" "$*" >&2; exit 1; }
log(){ printf '%s==>%s %s\n' "$C_BLD" "$C_0" "$*" >&2; }
info(){ printf ' %s\n' "$*" >&2; }
ok(){ printf ' %s%s%s\n' "$C_GRN" "$*" "$C_0" >&2; }
warn(){ printf ' %s%s%s\n' "$C_YEL" "$*" "$C_0" >&2; }
need(){ command -v "$1" >/dev/null 2>&1 || die "missing dependency: $1"; }
now(){ date -u +%Y%m%dT%H%M%SZ; }
sha(){ shasum -a 256 "$1" 2>/dev/null | awk '{print $1}'; }
epoch(){ python3 -c 'import time;print(time.time())'; }
sdir(){ printf '%s/%s' "$SBX_ROOT" "$1"; }
manifest(){ printf '%s/manifest.json' "$(sdir "$1")"; }
mexists(){ [ -f "$(manifest "$1")" ]; }
mget(){ # mget <name> <jsonpath>
python3 -c "import json,sys; d=json.load(open('$(manifest "$1")')); print(d$2)" 2>/dev/null
}
port_free(){ ! (exec 3<>"/dev/tcp/127.0.0.1/$1") 2>/dev/null; }
alloc_port(){
local p="$PORT_BASE"
while :; do
if [ "$p" = "$LIVE_BIND_PORT" ] || [ "$p" = "$SOUL_PORT" ]; then p=$((p+1)); continue; fi
if port_free "$p" && ! _port_claimed "$p"; then echo "$p"; return 0; fi
p=$((p+1)); [ "$p" -gt 9100 ] && die "no free sandbox port in range"
done
}
_port_claimed(){ # is another sandbox already assigned this port?
local p="$1" d
for d in "$SBX_ROOT"/*/manifest.json; do
[ -f "$d" ] || continue
[ "$(python3 -c "import json;print(json.load(open('$d'))['port'])" 2>/dev/null)" = "$p" ] && return 0
done
return 1
}
live_stats(){ curl -s -m5 "$LIVE_URL/api/stats" 2>/dev/null; }
api(){ # api <name> <path> [json-body]
local name="$1" path="$2" body="${3:-}"
local port; port="$(mget "$name" "['port']")"; [ -n "$port" ] || die "unknown sandbox: $name"
local url="http://127.0.0.1:${port}${path}"
if [ -n "$body" ]; then curl -s -m30 -X POST -H 'Content-Type: application/json' -d "$body" "$url"
else curl -s -m30 "$url"; fi
}
sbx_stats(){ api "$1" "/api/stats"; }
stat_field(){ printf '%s' "$1" | sed -n "s/.*\"$2\":\([0-9]*\).*/\1/p"; }
daemon_pid(){ local f; f="$(sdir "$1")/daemon.pid"; [ -f "$f" ] && cat "$f" || true; }
daemon_alive(){ local p; p="$(daemon_pid "$1")"; [ -n "$p" ] && kill -0 "$p" 2>/dev/null; }
# ---------------------------------------------------------------- elc/build ----
find_elc(){
command -v elc 2>/dev/null && return 0
local arch; arch="$(uname -m)"
case "$arch" in
arm64) echo "$EL_REPO/lang/dist/platform/elc-darwin-arm64";;
x86_64) echo "$EL_REPO/lang/dist/platform/elc-linux-amd64";;
*) echo "$EL_REPO/lang/dist/platform/elc";;
esac
}
# _build_binary <src_tree> <out_bin> <build_log_dir>
# Replicates the proven engram release recipe:
# elc engram/src/server.el > engram.c
# cc -std=c11 -O2 -I lang/runtime engram.c el_runtime.c engram_*.c -lcurl -lpthread
_build_binary(){
local src="$1" out="$2" blog="$3"
local elc server rt
elc="$(find_elc)"; [ -x "$elc" ] || die "elc not found/executable: $elc (set EL_REPO)"
server="$src/engram/src/server.el"; rt="$src/lang/runtime"
[ -f "$server" ] || die "no engram/src/server.el under source tree: $src"
[ -f "$rt/el_runtime.c" ] || die "no lang/runtime/el_runtime.c under source tree: $src (this branch may keep it generated/untracked)"
ls "$rt"/engram_*.c >/dev/null 2>&1 || die "no lang/runtime/engram_*.c engine sources under: $src"
mkdir -p "$blog"
log "build: elc transpile server.el -> engram.c"
"$elc" "$server" > "$blog/engram.c" 2>"$blog/elc.err" || { cat "$blog/elc.err" >&2; die "elc transpile failed"; }
info "engram.c: $(wc -c <"$blog/engram.c" | tr -d ' ') bytes"
log "build: cc link (el_runtime + engram_* engine)"
cc -std=c11 -O2 -w -I "$rt" -o "$out" \
"$blog/engram.c" "$rt/el_runtime.c" "$rt"/engram_*.c \
-lcurl -lpthread 2>"$blog/cc.err" \
|| { grep -i 'error:' "$blog/cc.err" | sort -u | head >&2; die "cc link failed (see $blog/cc.err)"; }
ok "built: $out ($(ls -lh "$out" | awk '{print $5}'), sha $(sha "$out" | cut -c1-12))"
}
# ---------------------------------------------------------------- daemon -------
# start_daemon <name> : boots the sandbox's real engram binary on its isolated
# port against its cloned data dir, with the SAME auto-remerge net the live soul
# uses (so the sandbox faithfully reaches the live edge population on boot).
start_daemon(){
local name="$1" d; d="$(sdir "$name")"
daemon_alive "$name" && { info "already running (pid $(daemon_pid "$name"))"; return 0; }
local port bin data export key
port="$(mget "$name" "['port']")"; bin="$d/bin/engram"; data="$d/data"
key="sbx-$name"; export="$data/.scan-export.reseed-clean.json"
[ -x "$bin" ] || die "sandbox binary missing: $bin"
[ "$port" != "$LIVE_BIND_PORT" ] && [ "$port" != "$SOUL_PORT" ] || die "refusing forbidden port $port"
[ -f "$data/neuron.egm" ] || die "sandbox has no cloned store: $data/neuron.egm"
# HARD guard: never point a sandbox daemon at the live data dir.
[ "$(cd "$data" && pwd -P)" != "$(cd "$LIVE_DATA_DIR" && pwd -P)" ] || die "refusing: sandbox data dir resolves to LIVE store"
log "boot engram on isolated :$port (data=$data)"
(
ENGRAM_DATA_DIR="$data" ENGRAM_BIND=":$port" ENGRAM_API_KEY="$key" \
ENGRAM_STORE=1 ENGRAM_CHRONOCEPTION=1 ENGRAM_SELF_REIFY=1 ENGRAM_GC=1 \
ENGRAM_POOL_FRAMES=16384 ENGRAM_WRITE_BARRIER=1 \
exec "$bin"
) >"$d/logs/daemon.log" 2>&1 &
local pid=$!
echo "$pid" > "$d/daemon.pid"
# readiness poll
local url="http://127.0.0.1:$port" i s
for i in $(seq 1 30); do
s="$(curl -s -m3 "$url/api/stats" 2>/dev/null)"
[ -n "$s" ] && break; sleep 0.5
done
[ -n "$s" ] || { warn "daemon did not become ready (see $d/logs/daemon.log)"; return 1; }
ok "ready pid=$pid boot-stats: $s"
# auto-remerge net (idempotent): match live edge population if the export is present
if [ -f "$export" ]; then
local edges; edges="$(stat_field "$s" edge_count)"
if [ -n "$edges" ] && [ "$edges" -lt "$REMERGE_THRESHOLD" ]; then
log "auto-remerge: booted with $edges edges (< $REMERGE_THRESHOLD) — merging full edge export"
local r; r="$(curl -s -m300 -X POST -H 'Content-Type: application/json' \
-d "{\"_auth\":\"$key\",\"path\":\"$export\"}" "$url/api/load-merge" 2>/dev/null)"
info "remerge resp: ${r:0:120}"
ok "post-remerge stats: $(curl -s -m5 "$url/api/stats")"
fi
fi
return 0
}
# stop_daemon <name> : graceful TERM + settle-poll until the port is free.
# (Sandbox daemons are plain supervised bg processes — not launchd — so teardown
# is a signal + poll, never pkill of anything else.)
stop_daemon(){
local name="$1" pid port
pid="$(daemon_pid "$name")"; port="$(mget "$name" "['port']")"
[ -n "$pid" ] || { info "not running"; return 0; }
log "stop daemon pid=$pid, settle-poll until :$port frees"
kill "$pid" 2>/dev/null || true
local i
for i in $(seq 1 40); do
kill -0 "$pid" 2>/dev/null || { port_free "$port" && { ok "stopped, port $port free"; : >"$(sdir "$name")/daemon.pid"; return 0; }; }
printf '.' >&2; sleep 0.5
done
printf '\n' >&2
kill -9 "$pid" 2>/dev/null || true; sleep 1
: >"$(sdir "$name")/daemon.pid"
port_free "$port" && ok "stopped (after SIGKILL), port $port free" || warn "port $port still busy"
}
# ================================================================ create =======
cmd_create(){
local name="" port="" src="" branch="" repo="$EL_REPO" binpath=""
# first positional arg is the name unless it's a flag; default to "<user>-dev"
if [ $# -gt 0 ] && [ "${1#-}" = "$1" ]; then name="$1"; shift; else name="${USER:-dev}-dev"; fi
while [ $# -gt 0 ]; do case "$1" in
--port) port="$2"; shift 2;;
--source) src="$2"; shift 2;;
--branch) branch="$2"; shift 2;;
--repo) repo="$2"; shift 2;;
--binary) binpath="$2"; shift 2;;
*) die "unknown flag: $1";;
esac; done
mexists "$name" && die "sandbox '$name' already exists (destroy it first)"
need curl; need python3; need shasum
[ -f "$LIVE_DATA_DIR/neuron.egm" ] || die "live store not found: $LIVE_DATA_DIR/neuron.egm"
if [ -n "$port" ]; then
{ [ "$port" = "$LIVE_BIND_PORT" ] || [ "$port" = "$SOUL_PORT" ]; } && die "refusing forbidden port $port (live)"
port_free "$port" || die "port $port already in use"
else port="$(alloc_port)"; fi
local d; d="$(sdir "$name")"
mkdir -p "$d/data" "$d/bin" "$d/logs" "$d/build" "$d/baseline"
log "sandbox '$name' at $d (isolated port $port)"
# ---- CONSISTENT snapshot of the live mind (file-copy: same set the rails backup
# uses; WAL replay on sandbox boot reconciles the tail -> crash-consistent) ----
log "snapshot live store -> clone (store + WAL + config)"
local f
for f in neuron.egm neuron.wal conf meta.json self_anchor .scan-export.reseed-clean.json; do
if [ -e "$LIVE_DATA_DIR/$f" ]; then cp -p "$LIVE_DATA_DIR/$f" "$d/data/$f"; info "cloned $f ($(du -h "$d/data/$f" | awk '{print $1}'))"; fi
done
local egm_sha; egm_sha="$(sha "$d/data/neuron.egm")"
# ---- capture live baseline (READ only) ----
local lstats; lstats="$(live_stats)"
local base_nodes base_edges
base_nodes="$(stat_field "$lstats" node_count)"; base_edges="$(stat_field "$lstats" edge_count)"
info "live baseline stats: ${lstats:-<unavailable>}"
# ---- determine + place the runtime binary (versioned into the snapshot) ----
local source_desc live_bin
live_bin="$(_live_real_bin)"
if [ -n "$binpath" ]; then
[ -x "$binpath" ] || die "not an executable binary: $binpath"
cp -p "$binpath" "$d/bin/engram"; source_desc="prebuilt:$binpath"
elif [ -n "$src" ]; then
_build_binary "$src" "$d/bin/engram" "$d/build"; source_desc="source:$src"
elif [ -n "$branch" ]; then
log "worktree: $repo @ $branch -> $d/build/worktree"
git -C "$repo" worktree add --detach "$d/build/worktree" "$branch" >/dev/null 2>&1 \
|| die "git worktree add failed ($repo @ $branch)"
_build_binary "$d/build/worktree" "$d/bin/engram" "$d/build"; source_desc="branch:$branch@$repo"
else
[ -x "$live_bin" ] || die "cannot resolve live ENGRAM_REAL_BIN: $live_bin"
cp -p "$live_bin" "$d/bin/engram"; source_desc="stock-prod:$live_bin"
fi
local bin_sha; bin_sha="$(sha "$d/bin/engram")"
info "runtime: $source_desc (sha ${bin_sha:0:12})"
# ---- write manifest ----
python3 - "$name" "$port" "$source_desc" "$bin_sha" "$egm_sha" "$base_nodes" "$base_edges" "$(sha "$live_bin" 2>/dev/null)" <<'PY' > "$(manifest "$name")"
import json,sys,datetime
name,port,src,binsha,egmsha,bn,be,livebinsha=sys.argv[1:9]
json.dump({
"name":name,"port":int(port),"created_at":datetime.datetime.now(datetime.timezone.utc).isoformat(),
"source":src,"binary_sha256":binsha,"clone_egm_sha256":egmsha,
"live_binary_sha256":livebinsha,
"live_baseline":{"node_count":int(bn or 0),"edge_count":int(be or 0)},
"keystones":["kn-efeb4a5b-5aff-4759-8a97-7233099be6ee","kn-5b606390-a52d-4ca2-8e0e-eba141d13440"]
}, sys.stdout, indent=2)
PY
ok "manifest written"
# ---- boot + capture the sandbox's own settled baseline (reproducible target) ----
start_daemon "$name" || die "daemon failed to start"
local sstats; sstats="$(sbx_stats "$name")"
local sbn sbe; sbn="$(stat_field "$sstats" node_count)"; sbe="$(stat_field "$sstats" edge_count)"
_capture_retrieval "$name" "$d/baseline/retrieval.json"
# fold sandbox baseline into manifest
python3 - "$(manifest "$name")" "$sbn" "$sbe" <<'PY'
import json,sys
mf,bn,be=sys.argv[1],sys.argv[2],sys.argv[3]
d=json.load(open(mf)); d["sbx_baseline"]={"node_count":int(bn or 0),"edge_count":int(be or 0)}
json.dump(d,open(mf,'w'),indent=2)
PY
log "created."
info "sandbox baseline (settled): nodes=$sbn edges=$sbe"
info "next: nsbx validate $name | nsbx run $name api /api/stats"
}
_live_real_bin(){
python3 - "$LIVE_PLIST" <<'PY' 2>/dev/null
import sys,plistlib
try:
d=plistlib.load(open(sys.argv[1],'rb'))
print(d.get("EnvironmentVariables",{}).get("ENGRAM_REAL_BIN",""))
except Exception: print("")
PY
}
_capture_retrieval(){ # <name> <outfile> : top-k ids for the fixed probe set
local name="$1" out="$2" q res
local port; port="$(mget "$name" "['port']")"; local key="sbx-$name"
{
echo "{"
local first=1
for q in "${PARITY_QUERIES[@]}"; do
res="$(curl -s -m10 -X POST -H 'Content-Type: application/json' \
-d "{\"_auth\":\"$key\",\"query\":\"$q\",\"limit\":5}" "http://127.0.0.1:$port/api/search" 2>/dev/null)"
local ids; ids="$(printf '%s' "$res" | python3 -c 'import sys,json
try:
d=json.load(sys.stdin)
rows=d if isinstance(d,list) else d.get("results",d.get("hits",[]))
print(json.dumps([r.get("id") for r in rows][:5]))
except Exception: print("[]")' 2>/dev/null)"
[ $first -eq 1 ] || echo ","; first=0
printf ' %s: %s' "$(python3 -c "import json,sys;print(json.dumps(sys.argv[1]))" "$q")" "${ids:-[]}"
done
echo ""; echo "}"
} > "$out"
}
# ================================================================ up ===========
# Dead-simple one-command dev environment: `nsbx up` gives you (or Tim, or anyone)
# a private, isolated copy of the live mind to build against. Creates it on first
# run with sane defaults (stock prod binary, auto-allocated port), just starts it
# thereafter. Prod on :$LIVE_BIND_PORT/:$SOUL_PORT is unreachable from here by design.
cmd_up(){
local name; if [ $# -gt 0 ] && [ "${1#-}" = "$1" ]; then name="$1"; shift; else name="${USER:-dev}-dev"; fi
if mexists "$name"; then daemon_alive "$name" || start_daemon "$name"; else cmd_create "$name" "$@"; fi
local port; port="$(mget "$name" "['port']")"
echo >&2
ok "your sandbox '$name' is ready at http://127.0.0.1:$port (a private copy of the mind — prod is untouchable)"
info "experiment: nsbx run $name api /api/stats"
info "prove it: nsbx validate $name"
info "tear down: nsbx destroy $name"
}
# ================================================================ build ========
# Rebuild an existing sandbox's runtime from a source tree/branch and hot-restart
# it on the SAME clone + port (the code-change dev loop, in place).
cmd_build(){
local name="$1"; shift || true
mexists "$name" || die "no such sandbox: $name"
local src="" branch="" repo="$EL_REPO"
while [ $# -gt 0 ]; do case "$1" in
--source) src="$2"; shift 2;; --branch) branch="$2"; shift 2;; --repo) repo="$2"; shift 2;;
*) die "unknown flag: $1";; esac; done
local d; d="$(sdir "$name")"
stop_daemon "$name"
if [ -n "$src" ]; then _build_binary "$src" "$d/bin/engram" "$d/build"
elif [ -n "$branch" ]; then
rm -rf "$d/build/worktree" 2>/dev/null; git -C "$repo" worktree prune 2>/dev/null
git -C "$repo" worktree add --detach "$d/build/worktree" "$branch" >/dev/null 2>&1 || die "worktree add failed"
_build_binary "$d/build/worktree" "$d/bin/engram" "$d/build"
else die "usage: nsbx build <name> --source DIR | --branch REF [--repo R]"; fi
# record new binary sha
python3 - "$(manifest "$name")" "$(sha "$d/bin/engram")" "${src:-branch:$branch}" <<'PY'
import json,sys; mf,s,src=sys.argv[1:4]
d=json.load(open(mf)); d["binary_sha256"]=s; d["source"]="rebuilt:"+src
json.dump(d,open(mf,'w'),indent=2)
PY
start_daemon "$name"
ok "rebuilt + restarted on :$(mget "$name" "['port']")"
}
# ================================================================ run ==========
cmd_run(){
local name="$1"; shift || true
mexists "$name" || die "no such sandbox: $name"
daemon_alive "$name" || start_daemon "$name"
local d port; d="$(sdir "$name")"; port="$(mget "$name" "['port']")"
# direct API form: nsbx run <name> api <path> [json]
if [ "${1:-}" = "api" ]; then
api "$name" "$2" "${3:-}"; echo; return 0
fi
[ "${1:-}" = "--" ] && shift # allow an explicit separator: nsbx run <name> -- <cmd...>
[ $# -gt 0 ] || die "usage: nsbx run <name> <cmd...> | nsbx run <name> api <path> [json]"
local ts log0; ts="$(now)"; log0="$d/logs/run-$ts.log"
local s0 t0 t1 s1
s0="$(sbx_stats "$name")"; t0="$(epoch)"
log "run experiment against sandbox '$name' (:$port)"
info "cmd: $*"
( export SBX_NAME="$name" SBX_PORT="$port" SBX_URL="http://127.0.0.1:$port" \
SBX_KEY="sbx-$name" SBX_DATA="$d/data" SBX_BIN="$d/bin/engram"
"$@" ) 2>&1 | tee "$log0"
local rc=${PIPESTATUS[0]}
t1="$(epoch)"; s1="$(sbx_stats "$name")"
{
echo "--- nsbx run metrics ---"
echo "exit_code: $rc"
printf 'wall_secs: %.3f\n' "$(python3 -c "print($t1-$t0)")"
echo "stats_before: $s0"
echo "stats_after: $s1"
} | tee -a "$log0" >&2
return $rc
}
# ================================================================ validate =====
# The rails as first-class checks. Baseline = the sandbox's own settled state at
# create (reproducible). zero-loss through sustained load AND reboot; reboot-prove;
# RSS bound; retrieval parity; keystone integrity.
cmd_validate(){
local name="$1"; shift || true
mexists "$name" || die "no such sandbox: $name"
daemon_alive "$name" || start_daemon "$name"
local d port key; d="$(sdir "$name")"; port="$(mget "$name" "['port']")"; key="sbx-$name"
local url="http://127.0.0.1:$port"
local bn be; bn="$(mget "$name" "['sbx_baseline']['node_count']")"; be="$(mget "$name" "['sbx_baseline']['edge_count']")"
log "validate '$name' against baseline nodes=$bn edges=$be"
local -a names=() results=() details=()
# 1) sustained load — no data loss under activity
local s cur_n cur_e i
log "check: sustained load (~15s: tick + reads) then zero-loss"
for i in $(seq 1 15); do
curl -s -m5 -X POST -H 'Content-Type: application/json' -d "{\"_auth\":\"$key\"}" "$url/api/tick" >/dev/null 2>&1
curl -s -m5 "$url/api/stats" >/dev/null 2>&1
done
s="$(sbx_stats "$name")"; cur_n="$(stat_field "$s" node_count)"; cur_e="$(stat_field "$s" edge_count)"
names+=("zero-loss-under-load"); if [ "${cur_n:-0}" -ge "${bn:-0}" ] && [ "${cur_e:-0}" -ge "${be:-0}" ]; then
results+=("PASS"); else results+=("FAIL"); fi
details+=("nodes $cur_n>=$bn, edges $cur_e>=$be")
# 2) reboot-prove — counts survive a real restart
log "check: reboot-prove (stop -> start -> compare)"
local pre_n pre_e; pre_n="$cur_n"; pre_e="$cur_e"
stop_daemon "$name"; start_daemon "$name" >/dev/null
s="$(sbx_stats "$name")"; cur_n="$(stat_field "$s" node_count)"; cur_e="$(stat_field "$s" edge_count)"
names+=("reboot-prove"); if [ "${cur_n:-0}" -ge "${bn:-0}" ] && [ "${cur_e:-0}" -ge "${be:-0}" ]; then
results+=("PASS"); else results+=("FAIL"); fi
details+=("post-reboot nodes=$cur_n edges=$cur_e (pre $pre_n/$pre_e)")
# 3) RSS bound
log "check: RSS bound (< ${RSS_BOUND_MB}MB)"
local pid rss_kb rss_mb; pid="$(daemon_pid "$name")"
rss_kb="$(ps -o rss= -p "$pid" 2>/dev/null | tr -d ' ')"; rss_mb=$(( ${rss_kb:-0} / 1024 ))
names+=("rss-bound"); if [ "$rss_mb" -lt "$RSS_BOUND_MB" ] && [ "$rss_mb" -gt 0 ]; then results+=("PASS"); else results+=("FAIL"); fi
details+=("RSS=${rss_mb}MB (bound ${RSS_BOUND_MB}MB)")
# 4) retrieval parity vs the create-time baseline
log "check: retrieval parity vs baseline probe set"
_capture_retrieval "$name" "$d/logs/retrieval-$( now ).json"
local latest; latest="$(ls -t "$d/logs"/retrieval-*.json 2>/dev/null | head -1)"
local parity; parity="$(python3 - "$d/baseline/retrieval.json" "$latest" <<'PY'
import json,sys
def load(p):
try: return json.load(open(p))
except Exception: return {}
b,c=load(sys.argv[1]),load(sys.argv[2])
tot=hit=0
for q,ids in b.items():
cb=set(ids or []); cc=set(c.get(q) or [])
if not cb: continue
tot+=len(cb); hit+=len(cb & cc)
print(f"{hit}/{tot}" if tot else "0/0")
PY
)"
local ph="${parity%/*}" pt="${parity#*/}"
names+=("retrieval-parity"); if [ "${pt:-0}" -gt 0 ] && [ "${ph:-0}" -eq "${pt:-0}" ]; then results+=("PASS"); else results+=("FAIL"); fi
details+=("top-k id overlap $parity vs baseline")
# 5) keystone integrity
log "check: keystone integrity"
local kfail=0 kid kres
for kid in "${KEYSTONES[@]}"; do
kres="$(curl -s -m5 "$url/api/node/$kid" 2>/dev/null)"
printf '%s' "$kres" | grep -q "\"$kid\"" || kfail=1
done
names+=("keystone-integrity"); [ "$kfail" -eq 0 ] && results+=("PASS") || results+=("FAIL")
details+=("kn-efeb4a5b + kn-5b606390 present")
# ---- report + stamp ----
echo >&2
printf '%s VALIDATION — %s%s\n' "$C_BLD" "$name" "$C_0" >&2
local allpass=1 j
for j in "${!names[@]}"; do
local r="${results[$j]}" c="$C_GRN"; [ "$r" = FAIL ] && { c="$C_RED"; allpass=0; }
printf ' %s%-6s%s %-22s %s%s%s\n' "$c" "$r" "$C_0" "${names[$j]}" "$C_DIM" "${details[$j]}" "$C_0" >&2
done
local status; [ "$allpass" -eq 1 ] && status="PASS" || status="FAIL"
python3 - "$d/validate.json" "$status" "$(sha "$d/bin/engram")" "$(now)" "${names[*]}" "${results[*]}" <<'PY'
import json,sys
out,status,binsha,ts,ns,rs=sys.argv[1:7]
checks=[{"name":n,"result":r} for n,r in zip(ns.split(),rs.split())]
json.dump({"status":status,"binary_sha256":binsha,"ts":ts,"checks":checks},open(out,'w'),indent=2)
PY
printf ' %s==> %s%s\n' "$([ "$allpass" -eq 1 ] && echo "$C_GRN" || echo "$C_RED")" "$status" "$C_0" >&2
[ "$allpass" -eq 1 ]
}
# ================================================================ promote ======
# The ONLY prod-touching op. Explicit, gated, per-use Will-approved. Rails ONLY:
# snapshot-first -> additive binary swap -> launchctl bootout -> settle-poll ->
# bootstrap -> verify -> auto-rollback on failure. NEVER pkill, NEVER kickstart -k.
# Default is a DRY-RUN plan; requires --i-approve-prod-cutover to actually cut over.
cmd_promote(){
local name="$1"; shift || true
mexists "$name" || die "no such sandbox: $name"
local approve=0 do_data=0
while [ $# -gt 0 ]; do case "$1" in
--i-approve-prod-cutover) approve=1; shift;;
--data) do_data=1; shift;;
*) die "unknown flag: $1";; esac; done
local d; d="$(sdir "$name")"
# GATE 1: validation must have passed for the CURRENT binary
[ -f "$d/validate.json" ] || die "GATE: no validation on record — run 'nsbx validate $name' first"
local vstatus vsha bsha
vstatus="$(python3 -c "import json;print(json.load(open('$d/validate.json'))['status'])")"
vsha="$(python3 -c "import json;print(json.load(open('$d/validate.json'))['binary_sha256'])")"
bsha="$(sha "$d/bin/engram")"
[ "$vstatus" = PASS ] || die "GATE: last validation status is $vstatus (must be PASS)"
[ "$vsha" = "$bsha" ] || die "GATE: validation is stale — binary changed since validate (re-run validate)"
local live_bin new_bin ts; ts="$(now)"
live_bin="$(_live_real_bin)"
new_bin="$HOME/.neuron/bin/engram.promote-$name-$ts" # additive: new file, old kept
local bkp="$BACKUP_ROOT/promote-$name-$ts"
log "PROMOTE PLAN for '$name' -> live :$LIVE_BIND_PORT"
info "current live ENGRAM_REAL_BIN : $live_bin"
info "sandbox binary (validated) : $d/bin/engram (sha ${bsha:0:12})"
info "will install as : $new_bin (additive; old binary retained)"
info "snapshot-first backup dir : $bkp (egm+wal+plist+rollback.txt)"
info "data promote : $([ $do_data -eq 1 ] && echo 'YES (--data: clone egm/wal -> live)' || echo 'no (binary only)')"
info "rails : launchctl bootout -> settle-poll -> bootstrap"
info "verify : /api/stats + edges>=baseline + keystones + retrieval; auto-rollback armed"
if [ "$approve" -ne 1 ]; then
warn "DRY-RUN — not touching prod. Re-run with --i-approve-prod-cutover to execute (per-use Will-approved)."
return 0
fi
need launchctl
local dom="gui/$(id -u)"
# ---- snapshot-first ----
log "snapshot-first backup -> $bkp"
mkdir -p "$bkp"
cp -p "$LIVE_DATA_DIR/neuron.egm" "$bkp/neuron.egm.bak"
cp -p "$LIVE_DATA_DIR/neuron.wal" "$bkp/neuron.wal.bak" 2>/dev/null || true
cp -p "$LIVE_PLIST" "$bkp/plist.bak"
printf 'rollback REAL_BIN=%s\nNEWBIN=%s\ndata_promote=%s\n' "$live_bin" "$new_bin" "$do_data" > "$bkp/rollback.txt"
ok "backup complete"
# ---- additive binary install + plist supersede ----
cp -p "$d/bin/engram" "$new_bin"
python3 - "$LIVE_PLIST" "$new_bin" <<'PY'
import sys,plistlib
p,new=sys.argv[1],sys.argv[2]
d=plistlib.load(open(p,'rb')); d.setdefault("EnvironmentVariables",{})["ENGRAM_REAL_BIN"]=new
plistlib.dump(d,open(p,'wb'))
PY
ok "installed $new_bin + updated plist ENGRAM_REAL_BIN"
# ---- optional data promote (after backup) ----
if [ $do_data -eq 1 ]; then
log "data promote: clone store -> live (backed up above)"
cp -p "$d/data/neuron.egm" "$LIVE_DATA_DIR/neuron.egm"
cp -p "$d/data/neuron.wal" "$LIVE_DATA_DIR/neuron.wal" 2>/dev/null || true
fi
# ---- rails cutover: bootout -> settle-poll -> bootstrap ----
log "rails: launchctl bootout $dom/$LIVE_LABEL"
launchctl bootout "$dom/$LIVE_LABEL" 2>/dev/null || true
local i
for i in $(seq 1 60); do
launchctl print "$dom/$LIVE_LABEL" >/dev/null 2>&1 || { ok "settle: job gone after ${i}x0.5s"; break; }
printf ' settle: job still present (%d)\n' "$i" >&2; sleep 0.5
done
log "rails: launchctl bootstrap $dom <plist>"
launchctl bootstrap "$dom" "$LIVE_PLIST" || warn "bootstrap returned nonzero"
# ---- verify ----
log "verify prod health"
local s="" ; for i in $(seq 1 60); do s="$(live_stats)"; [ -n "$s" ] && break; sleep 1; done
local ok_verify=1 le; le="$(stat_field "$s" edge_count)"
local base_e; base_e="$(mget "$name" "['live_baseline']['edge_count']")"
[ -n "$s" ] || ok_verify=0
[ "${le:-0}" -ge "${base_e:-0}" ] || ok_verify=0
local kid; for kid in "${KEYSTONES[@]}"; do curl -s -m5 "$LIVE_URL/api/node/$kid" 2>/dev/null | grep -q "\"$kid\"" || ok_verify=0; done
if [ "$ok_verify" -eq 1 ]; then
ok "PROMOTED. live stats: $s (rollback: $bkp)"; return 0
fi
# ---- auto-rollback ----
warn "verify FAILED — auto-rollback"
cp -p "$bkp/plist.bak" "$LIVE_PLIST"
[ $do_data -eq 1 ] && { cp -p "$bkp/neuron.egm.bak" "$LIVE_DATA_DIR/neuron.egm"; cp -p "$bkp/neuron.wal.bak" "$LIVE_DATA_DIR/neuron.wal" 2>/dev/null || true; }
launchctl bootout "$dom/$LIVE_LABEL" 2>/dev/null || true
for i in $(seq 1 60); do launchctl print "$dom/$LIVE_LABEL" >/dev/null 2>&1 || break; sleep 0.5; done
launchctl bootstrap "$dom" "$LIVE_PLIST" || true
die "ROLLED BACK to $live_bin. See $bkp"
}
# ================================================================ destroy ======
cmd_destroy(){
local name="$1"; shift || true
mexists "$name" || die "no such sandbox: $name"
local d; d="$(sdir "$name")"
stop_daemon "$name"
if [ -d "$d/build/worktree" ]; then
log "removing git worktree"
git -C "$EL_REPO" worktree remove --force "$d/build/worktree" 2>/dev/null || true
git -C "$EL_REPO" worktree prune 2>/dev/null || true
fi
log "removing $d"
rm -rf "$d"
ok "destroyed '$name' (live untouched)"
}
# ================================================================ list/status ==
cmd_list(){
[ -d "$SBX_ROOT" ] || { echo "no sandboxes"; return 0; }
printf '%-16s %-6s %-8s %-9s %s\n' NAME PORT STATE PID SOURCE
local m
for m in "$SBX_ROOT"/*/manifest.json; do
[ -f "$m" ] || continue
local n p src pid state
n="$(python3 -c "import json;print(json.load(open('$m'))['name'])")"
p="$(python3 -c "import json;print(json.load(open('$m'))['port'])")"
src="$(python3 -c "import json;print(json.load(open('$m'))['source'])")"
pid="$(daemon_pid "$n")"; state="stopped"; daemon_alive "$n" && state="running"
printf '%-16s %-6s %-8s %-9s %s\n' "$n" "$p" "$state" "${pid:-}" "$src"
done
}
cmd_status(){
local name="$1"; mexists "$name" || die "no such sandbox: $name"
python3 -m json.tool "$(manifest "$name")"
daemon_alive "$name" && echo "state: running (pid $(daemon_pid "$name")) stats: $(sbx_stats "$name")" || echo "state: stopped"
[ -f "$(sdir "$name")/validate.json" ] && { echo "--- last validation ---"; python3 -m json.tool "$(sdir "$name")/validate.json"; }
}
usage(){ cat >&2 <<EOF
${C_BLD}nsbx${C_0} — Neuron Sandbox: experiments + code changes against the REAL engram
runtime on an isolated snapshot of the live mind, with a gated promote-to-prod path.
nsbx up [name] [flags…] one command: your private, isolated copy of the mind
(creates on first run, starts thereafter; prod untouchable)
nsbx create [name] [--port N] [--source DIR | --branch REF [--repo R] | --binary PATH]
clone live store+WAL+config, place/build the runtime, boot on an
isolated port (never :$LIVE_BIND_PORT/:$SOUL_PORT). Default runtime = stock prod binary.
nsbx build <name> --source DIR | --branch REF rebuild the runtime from a code change + hot-restart
nsbx run <name> <cmd...> | api <path> [json] run an experiment; capture output + metrics
nsbx validate <name> rails as checks: zero-loss(load+reboot), reboot-prove,
RSS bound, retrieval parity, keystone integrity
nsbx promote <name> [--data] [--i-approve-prod-cutover] GATED rails cutover to prod (DRY-RUN without approval)
nsbx destroy <name> stop daemon, free port, remove clone (live untouched)
nsbx list | nsbx status <name>
Env in 'run' cmds: \$SBX_URL \$SBX_PORT \$SBX_KEY \$SBX_DATA \$SBX_BIN \$SBX_NAME
EOF
}
main(){
local cmd="${1:-}"; shift || true
case "$cmd" in
up) cmd_up "$@";;
create) cmd_create "$@";;
build) cmd_build "$@";;
run) cmd_run "$@";;
validate) cmd_validate "$@";;
promote) cmd_promote "$@";;
destroy) cmd_destroy "$@";;
list|ls) cmd_list "$@";;
status) cmd_status "$@";;
""|-h|--help|help) usage;;
*) die "unknown command: $cmd (try: nsbx help)";;
esac
}
main "$@"