diff --git a/agent-queue/README.md b/agent-queue/README.md
index 073aacd..f91437b 100644
--- a/agent-queue/README.md
+++ b/agent-queue/README.md
@@ -76,7 +76,7 @@ which directory to run in, and whether to auto-approve:
 
 ```md
 ---
-engine: devin          # devin | claude | codex   (default: $AGENT_QUEUE_ENGINE)
+engine: devin          # devin | claude | codex | copilot  (default: $AGENT_QUEUE_ENGINE)
 cwd: /abs/path/to/repo # where the agent executes   (default: cwd when added)
 yolo: true             # auto-approve ALL tools      (default: true)
 lock: my-repo          # optional mutex key (default: cwd). Jobs sharing a key run serially
@@ -93,6 +93,50 @@ verify: pnpm -s test   # optional auto-QA gate. Runs in cwd after rc=0:
 `add --engine/--cwd/--yolo` will inject this frontmatter for you if the file doesn't
 already have a `---` block.
 
+### Manifest fields (Gigafactory Phase 1)
+
+The runner parses the richer [gigafactory manifest](docs/GIGAFACTORY_ROADMAP.md#5-the-evolved-job-manifest-feature)
+**backward-compatibly** — a legacy `engine`/`cwd`/`yolo`-only `.md` behaves exactly as before.
+Fields marked **RESERVED** are parsed, stored in `.state/<job>.meta`, and shown in `status`, but
+are otherwise **no-ops until a later phase** (they do not yet affect execution).
+
+| Field | Status | Default | Meaning |
+| ----- | ------ | ------- | ------- |
+| `engine` | active | `$AGENT_QUEUE_ENGINE` | explicit engine (`devin\|claude\|codex\|copilot`) — always wins over `engine-class` |
+| `cwd` / `yolo` / `lock` / `timeout` / `verify` | active | see above | Phase-0 behavior, unchanged |
+| `priority` | **active** | `medium` | `critical\|high\|medium\|low`. Inbox is picked **highest-priority first, then oldest** (was pure FIFO) |
+| `engine-class` | **active** | _(none)_ | used only when `engine` is unset: `agentic-coder`→`devin,claude,codex`; `chat-coder`→`copilot`. Picks the first **available** engine. No engine available → job fails `result=no_engine` |
+| `prefers-engine` | **active** | _(none)_ | optional order hint for `engine-class` resolution, e.g. `[claude, devin]` |
+| `capabilities` | **active** | _(none)_ | hard host requirements, e.g. `[os:any, node>=20, has:git]`. If the host can't satisfy them the job is sent to `failed/` with `result=capability_mismatch` **and the agent is never launched** (grammar below) |
+| `idempotency-key` | **active** | _(none)_ | dedupe on `add` (semantics below) |
+| `profile` | RESERVED | _(none)_ | role/persona + caps (profiles land in a later slice) |
+| `prefers` | RESERVED | _(none)_ | soft routing/affinity hints (e.g. `[factory:mac-2]`) |
+| `budget` | RESERVED | _(none)_ | `{ usd, tokens, wall }` ceilings (`wall` enforcement is a later slice) |
+| `deps` / `deps-mode` | RESERVED | _(none)_ | DAG dependencies (single-host blocking is a later slice) |
+| `retry` | RESERVED | _(none)_ | `{ max, backoff, on }` retry policy |
+| `review-policy` | RESERVED | _(none)_ | `auto\|manual\|reviewers:[…]` |
+| `artifacts` | RESERVED | _(none)_ | extra outputs to capture (coverage, screenshots) |
+| `tracker-item` | RESERVED | _(none)_ | link back to the originating tracker task |
+
+**Capability grammar** (a job matches a host iff **every** required token is satisfied):
+
+| Token form | Example | Satisfied when |
+| ---------- | ------- | -------------- |
+| `key` (bare presence) | `gpu` | the host advertises `key` in any form |
+| `key:value` (exact) | `os:mac`, `engine:devin`, `has:git` | the host advertises that exact token |
+| `key:any` (wildcard) | `os:any` | the host advertises any `key:*` (so `os:any` matches every host) |
+| `key<op>version` (`>=` `>` `=` `<=` `<`) | `node>=20` | numeric/semver-major compare vs the host's `key:<n>` |
+
+The host advertises (via `detect_capabilities`): `os:<mac\|linux>`, `engine:<each available engine>`,
+`node:<major>`, and `has:<git\|pnpm\|docker>` when present.
+
+**`idempotency-key` semantics** (on `add`, hashing the frontmatter-stripped body):
+
+- same key **+ same body** → **no-op** (logged `duplicate, skipped`).
+- same key **+ different body**, prior job still in `inbox/` → **supersedes** it (replaces the queued file).
+- same key **+ different body**, prior job already past `inbox/` (building/review/testing/shipped) →
+  **rejected** with a clear error (use a new key, or requeue the existing job).
+
 ## Engine mapping
 
 | `engine:` | Command run | Auto-approve flag (`yolo: true`) |
@@ -100,6 +144,7 @@ already have a `---` block.
 | `devin`   | `devin -p --prompt-file <body>` | `--permission-mode dangerous` |
 | `claude`  | `claude -p` (body on **stdin**) | `--dangerously-skip-permissions` |
 | `codex`   | `codex exec` (body on **stdin**) | `--dangerously-bypass-approvals-and-sandbox` |
+| `copilot` | `copilot -p` (body on **stdin**) | `--allow-all-tools` _(best-effort; chat-coder class target)_ |
 
 The frontmatter is **stripped** before the body reaches the agent, and
 claude/codex receive it on **stdin** so a body starting with `--` is never
@@ -178,7 +223,9 @@ queue/
 ```
 
 **`result=` values** written to `<job>.meta`: `review`, `testing`, `shipped`,
-`failed`, `timeout`, `verify_failed`, `rejected`, `requeued`.
+`failed`, `timeout`, `verify_failed`, `rejected`, `requeued`, `capability_mismatch`
+(host missing a required capability — agent never launched), `no_engine`
+(an `engine-class` had no available engine).
 
 ## Config (env overrides)
 
@@ -190,7 +237,7 @@ queue/
 | `AGENT_QUEUE_POLL` | `3` | inbox poll interval (seconds) |
 | `AGENT_QUEUE_VERIFY` | _(empty)_ | default auto-QA verify command; per-job `verify:` overrides it |
 | `AGENT_QUEUE_STALL_MIN` | `10` | minutes of unchanged log before a worker is `⚠ stalled` |
-| `DEVIN_BIN` / `CLAUDE_BIN` / `CODEX_BIN` | autodetected | override CLI binary paths |
+| `DEVIN_BIN` / `CLAUDE_BIN` / `CODEX_BIN` / `COPILOT_BIN` | autodetected | override CLI binary paths |
 | `FLOCK_BIN` / `TIMEOUT_BIN` | autodetected | `flock` (lock hardening) and `timeout`/`gtimeout` (hard timeouts); absent on stock macOS — see notes |
 
 ## ⚠️ Safety
diff --git a/agent-queue/agent-queue.sh b/agent-queue/agent-queue.sh
index 58287db..ee5bba3 100755
--- a/agent-queue/agent-queue.sh
+++ b/agent-queue/agent-queue.sh
@@ -62,6 +62,7 @@ TIMEOUT_BIN="${TIMEOUT_BIN:-$(command -v timeout || command -v gtimeout || true)
 DEVIN_BIN="${DEVIN_BIN:-$(command -v devin || echo "$HOME/.local/bin/devin")}"
 CLAUDE_BIN="${CLAUDE_BIN:-$(command -v claude || echo claude)}"
 CODEX_BIN="${CODEX_BIN:-$(command -v codex || echo codex)}"
+COPILOT_BIN="${COPILOT_BIN:-$(command -v copilot || echo copilot)}"
 
 # ── Colors ──────────────────────────────────────────────────────────
 if [[ -t 1 ]]; then
@@ -194,6 +195,188 @@ busy_keys() {
   done
 }
 
+# ── Manifest helpers (Phase 1 — §5/§6/§7/§8 single-host subset) ──────
+#
+# parse_list <raw> -> one token per line. Accepts a YAML-ish inline list
+# ("[a, b]"), comma- or space-separated values, with surrounding quotes
+# stripped. Empty tokens are dropped. Used for `capabilities`, `prefers`,
+# `prefers-engine`, `deps`, etc.
+parse_list() {
+  local raw cleaned t
+  cleaned=$(printf '%s' "${1:-}" | tr '[],' '   ')
+  for t in $cleaned; do
+    t=${t#[\"\']}; t=${t%[\"\']}
+    [[ -n "$t" ]] && printf '%s\n' "$t"
+  done
+}
+
+# _body_hash <file> -> stable content hash of the frontmatter-STRIPPED body.
+# Drives idempotency-key dedupe on `add`. Prefers shasum/sha1sum, falls back
+# to cksum so it works on a bare macOS/Linux host with no extra tools.
+_body_hash() {
+  local f=$1
+  if command -v shasum >/dev/null 2>&1; then
+    strip_frontmatter "$f" | shasum | awk '{print $1}'
+  elif command -v sha1sum >/dev/null 2>&1; then
+    strip_frontmatter "$f" | sha1sum | awk '{print $1}'
+  else
+    strip_frontmatter "$f" | cksum | awk '{print $1"-"$2}'
+  fi
+}
+
+# priority_rank <priority> -> sort rank (lower = picked first). Unknown/empty
+# defaults to medium. Used by inbox_sorted for priority-then-age selection.
+priority_rank() {
+  case "$1" in
+    critical) echo 0;; high) echo 1;; medium) echo 2;; low) echo 3;; *) echo 2;;
+  esac
+}
+
+# inbox_sorted -> inbox/*.md ordered by priority (critical first) then oldest
+# (filename embeds the queue timestamp, so a plain string sort = age order).
+# Replaces the pure-FIFO `ls | sort`; per-lock serialization is unchanged
+# (the caller still skips files whose lock key is busy).
+inbox_sorted() {
+  local f p r
+  for f in "$INBOX"/*.md; do
+    [[ -e "$f" ]] || continue
+    p=$(fm_get "$f" priority medium); r=$(priority_rank "$p")
+    printf '%s\t%s\n' "$r" "$f"
+  done | sort -t"$(printf '\t')" -k1,1n -k2,2 | cut -f2-
+}
+
+# engine_available <engine> -> 0 if a runnable binary exists for the engine
+# (executable path or a name resolvable on PATH). Honors the *_BIN overrides
+# (so the self-test stub counts as "available").
+engine_available() {
+  local eng=$1 bin=""
+  case "$eng" in
+    devin)   bin=$DEVIN_BIN;;
+    claude)  bin=$CLAUDE_BIN;;
+    codex)   bin=$CODEX_BIN;;
+    copilot) bin=$COPILOT_BIN;;
+    *) return 1;;
+  esac
+  [[ -n "$bin" ]] || return 1
+  [[ -x "$bin" ]] && return 0
+  command -v "$bin" >/dev/null 2>&1
+}
+
+# engine_class_engines <class> -> candidate engines (priority order) for an
+# engine-class (§5 taxonomy). `review-only` has no concrete mapping yet
+# (reserved). Unknown class -> empty.
+engine_class_engines() {
+  case "$1" in
+    agentic-coder) echo "devin claude codex";;
+    chat-coder)    echo "copilot";;
+    review-only)   echo "";;
+    *)             echo "";;
+  esac
+}
+
+# detect_capabilities -> one capability token per line describing THIS host:
+#   os:<mac|linux|other>            (os:any required-side wildcard matches this)
+#   engine:<devin|claude|codex|copilot>   for each available engine
+#   node:<major>                    the host node major (compared by node<op>N)
+#   has:<git|pnpm|docker>           tool probes (only emitted when present)
+detect_capabilities() {
+  case "$(uname -s 2>/dev/null)" in
+    Darwin) echo "os:mac";;
+    Linux)  echo "os:linux";;
+    *)      echo "os:other";;
+  esac
+  local e
+  for e in devin claude codex copilot; do
+    engine_available "$e" && echo "engine:$e"
+  done
+  if command -v node >/dev/null 2>&1; then
+    local nv; nv=$(node -v 2>/dev/null | sed 's/^v//' | cut -d. -f1)
+    [[ "$nv" =~ ^[0-9]+$ ]] && echo "node:$nv"
+  fi
+  local t
+  for t in git pnpm docker; do
+    command -v "$t" >/dev/null 2>&1 && echo "has:$t"
+  done
+}
+
+# _cap_token_ok <required-token> <available-tokens> -> 0 if satisfied (§5 grammar):
+#   key:any     wildcard — host advertises any "key:*" token (os:any matches all)
+#   key<op>ver  numeric/semver-major compare against the host's "key:<val>" token
+#               (op in >= > = <= <)
+#   key:value   exact token match
+#   key         bare presence — exact, or advertised in any "key:"/"key<op>" form
+_cap_token_ok() {
+  local tok=$1 avail=$2 a
+  if [[ "$tok" == *:any ]]; then
+    local wkey=${tok%:any}
+    for a in $avail; do [[ "$a" == "$wkey":* ]] && return 0; done
+    return 1
+  fi
+  if [[ "$tok" =~ ^([A-Za-z0-9_.:-]+)(\>=|\<=|=|\>|\<)([0-9][0-9.]*)$ ]]; then
+    local key=${BASH_REMATCH[1]} op=${BASH_REMATCH[2]} want=${BASH_REMATCH[3]} hostval=""
+    for a in $avail; do [[ "$a" == "$key":* ]] && { hostval=${a#*:}; break; }; done
+    [[ -n "$hostval" ]] || return 1
+    local hv=${hostval%%.*} wv=${want%%.*}
+    [[ "$hv" =~ ^[0-9]+$ && "$wv" =~ ^[0-9]+$ ]] || return 1
+    case "$op" in
+      ">=") [[ "$hv" -ge "$wv" ]];;
+      ">")  [[ "$hv" -gt "$wv" ]];;
+      "=")  [[ "$hv" -eq "$wv" ]];;
+      "<=") [[ "$hv" -le "$wv" ]];;
+      "<")  [[ "$hv" -lt "$wv" ]];;
+    esac
+    return $?
+  fi
+  if [[ "$tok" == *:* ]]; then
+    for a in $avail; do [[ "$a" == "$tok" ]] && return 0; done
+    return 1
+  fi
+  for a in $avail; do
+    case "$a" in "$tok"|"$tok":*|"$tok"\>=*|"$tok"\>*|"$tok"=*|"$tok"\<=*|"$tok"\<*) return 0;; esac
+  done
+  return 1
+}
+
+# caps_match <required-tokens> <available-tokens> -> 0 iff EVERY required token
+# is satisfied by the available set (both passed as whitespace-separated lists).
+caps_match() {
+  local required=$1 available=$2 r
+  for r in $required; do
+    _cap_token_ok "$r" "$available" || return 1
+  done
+  return 0
+}
+
+# resolve_engine <file> -> the concrete engine to run:
+#   explicit `engine:` always wins; else `engine-class` picks the first
+#   available engine honoring `prefers-engine` then the class default order;
+#   else the global default engine. Prints "" only when an engine-class was
+#   requested but no engine in it is available (caller fails with no_engine).
+resolve_engine() {
+  local f=$1 eng cls prefers
+  eng=$(fm_get "$f" engine "")
+  if [[ -n "$eng" ]]; then printf '%s' "$eng"; return 0; fi
+  cls=$(fm_get "$f" engine-class "")
+  if [[ -z "$cls" ]]; then printf '%s' "$DEFAULT_ENGINE"; return 0; fi
+  local class_engines; class_engines=$(engine_class_engines "$cls")
+  prefers=$(fm_get "$f" prefers-engine "")
+  local ordered=() seen=" " p c
+  if [[ -n "$prefers" ]]; then
+    while IFS= read -r p; do
+      [[ -n "$p" ]] || continue
+      case " $class_engines " in *" $p "*) ordered+=("$p"); seen+="$p ";; esac
+    done < <(parse_list "$prefers")
+  fi
+  for c in $class_engines; do
+    case "$seen" in *" $c "*) ;; *) ordered+=("$c"); seen+="$c ";; esac
+  done
+  local cand
+  for cand in ${ordered[@]+"${ordered[@]}"}; do
+    engine_available "$cand" && { printf '%s' "$cand"; return 0; }
+  done
+  printf '%s' ""
+}
+
 # ── Engine driver: builds argv into AGENT_CMD[]; sets AGENT_STDIN if the ──
 # prompt should be fed on stdin (claude/codex) rather than a flag. $pf is the
 # frontmatter-STRIPPED body file, so a body starting with '--' is never
@@ -216,7 +399,14 @@ build_agent_cmd() {
       [[ "$yolo" == "true" ]] && AGENT_CMD+=( --dangerously-bypass-approvals-and-sandbox )
       AGENT_STDIN="$pf"
       ;;
-    *) die "unknown engine '$engine' (use: devin | claude | codex)";;
+    copilot)
+      # Best-effort GitHub Copilot CLI mapping for the chat-coder engine-class.
+      # Flags drift between CLI versions — this is the single place to edit.
+      AGENT_CMD=( "$COPILOT_BIN" -p )
+      [[ "$yolo" == "true" ]] && AGENT_CMD+=( --allow-all-tools )
+      AGENT_STDIN="$pf"
+      ;;
+    *) die "unknown engine '$engine' (use: devin | claude | codex | copilot)";;
   esac
 }
 
@@ -226,7 +416,6 @@ run_worker() {
   local job; job=$(basename "$doing_file")
   job=${job%.md}
   local engine cwd yolo logf metaf
-  engine=$(fm_get "$doing_file" engine "$DEFAULT_ENGINE")
   cwd=$(fm_get "$doing_file" cwd "$PWD")
   yolo=$(fm_get "$doing_file" yolo "true")
   logf="$LOGS/$job.log"
@@ -234,6 +423,38 @@ run_worker() {
   # NOTE: the parent (cmd_run) creates $metaf with job/engine/cwd/started/pid.
   # The worker only ever APPENDS (ended/exit/result) to avoid a truncation race.
 
+  # ── Capability gate (§5/§8 single-host): if the job declares `capabilities`
+  # this host does not satisfy, route to failed/ WITHOUT launching the agent. ──
+  local req_caps; req_caps=$(parse_list "$(fm_get "$doing_file" capabilities "")" | tr '\n' ' ')
+  if [[ -n "${req_caps// /}" ]]; then
+    local avail; avail=$(detect_capabilities)
+    if ! caps_match "$req_caps" "$avail"; then
+      {
+        echo "===== agent-queue job: $job ====="
+        echo "CAPABILITY MISMATCH — host cannot satisfy required: $req_caps"
+        echo "host advertises: $(printf '%s' "$avail" | tr '\n' ' ')"
+        echo "agent NOT launched — routed to failed/ ($(date))"
+      } >> "$logf"
+      mv "$doing_file" "$FAILED/" 2>/dev/null
+      { echo "result=capability_mismatch"; echo "ended=$(date +%s)"; } >> "$metaf"
+      return 0
+    fi
+  fi
+
+  # ── Engine resolution (§5): explicit `engine` wins, else `engine-class`.
+  # No available engine for a requested class -> fail (no_engine), no launch. ──
+  engine=$(resolve_engine "$doing_file")
+  if [[ -z "$engine" ]]; then
+    {
+      echo "===== agent-queue job: $job ====="
+      echo "NO ENGINE — engine-class '$(fm_get "$doing_file" engine-class "")' has no available engine on this host"
+      echo "agent NOT launched — routed to failed/ ($(date))"
+    } >> "$logf"
+    mv "$doing_file" "$FAILED/" 2>/dev/null
+    { echo "result=no_engine"; echo "ended=$(date +%s)"; } >> "$metaf"
+    return 0
+  fi
+
   {
     echo "===== agent-queue job: $job ====="
     echo "engine=$engine cwd=$cwd yolo=$yolo"
@@ -363,6 +584,50 @@ cmd_add() {
     esac
   done
   [[ -n "$file" && -f "$file" ]] || die "usage: add <file.md> [--engine devin|claude|codex] [--cwd PATH] [--yolo|--no-yolo]"
+
+  # ── idempotency-key dedupe (§5) ──
+  # If the file declares an idempotency-key, compare a content hash of its
+  # stripped body against existing jobs in any active stage:
+  #   same key + same body            -> no-op (skip; "duplicate")
+  #   same key + different body, prior in inbox/  -> supersede (replace it)
+  #   same key + different body, prior elsewhere  -> reject (clear error)
+  local idem; idem=$(fm_get "$file" idempotency-key "")
+  if [[ -n "$idem" ]]; then
+    local newhash; newhash=$(_body_hash "$file")
+    local d ef ekey ehash stage
+    # pass 1: exact duplicate anywhere active -> no-op
+    for d in "$INBOX" "$BUILDING" "$REVIEW" "$TESTING" "$SHIPPED"; do
+      for ef in "$d"/*.md; do
+        [[ -e "$ef" ]] || continue
+        ekey=$(fm_get "$ef" idempotency-key "")
+        [[ "$ekey" == "$idem" ]] || continue
+        ehash=$(_body_hash "$ef")
+        if [[ "$ehash" == "$newhash" ]]; then
+          log "duplicate, skipped (idempotency-key=$C_BOLD$idem$C_RESET matches $(basename "$ef"))"
+          return 0
+        fi
+      done
+    done
+    # pass 2: same key, different body, prior is past inbox -> reject
+    for d in "$BUILDING" "$REVIEW" "$TESTING" "$SHIPPED"; do
+      for ef in "$d"/*.md; do
+        [[ -e "$ef" ]] || continue
+        ekey=$(fm_get "$ef" idempotency-key "")
+        [[ "$ekey" == "$idem" ]] || continue
+        stage=$(basename "$d")
+        die "idempotency-key '$idem' already in use by $(basename "$ef") (stage: $stage) with different content — refusing. Use a new key, or requeue the existing job."
+      done
+    done
+    # pass 3: same key, different body, prior still queued -> supersede
+    for ef in "$INBOX"/*.md; do
+      [[ -e "$ef" ]] || continue
+      ekey=$(fm_get "$ef" idempotency-key "")
+      [[ "$ekey" == "$idem" ]] || continue
+      log "superseding inbox job $(basename "$ef") (same idempotency-key=$idem, changed content)"
+      rm -f "$ef"
+    done
+  fi
+
   local base; base=$(basename "$file")
   local stamp; stamp=$(date +%Y%m%d-%H%M%S)
   local dest="$INBOX/${stamp}__${base}"
@@ -411,8 +676,9 @@ cmd_run() {
     local running; running=$(active_workers)
     # launch jobs while we have capacity and an eligible inbox file
     while [[ "$running" -lt "$MAX_CONCURRENCY" ]]; do
-      # pick the oldest inbox file whose lock key is not currently busy, so two
-      # jobs sharing a cwd (or `lock:` key) never run at once, regardless of --max.
+      # pick by priority (critical→low) then age, skipping files whose lock key
+      # is currently busy, so two jobs sharing a cwd (or `lock:` key) never run
+      # at once regardless of --max. inbox_sorted replaces the old pure-FIFO sort.
       local busy; busy=$(busy_keys)
       local next="" cand cand_key
       while IFS= read -r cand; do
@@ -420,25 +686,45 @@ cmd_run() {
         cand_key=$(lock_key_for "$cand")
         if printf '%s\n' "$busy" | grep -qxF -- "$cand_key"; then continue; fi
         next="$cand"; break
-      done < <(ls -1 "$INBOX"/*.md 2>/dev/null | sort)
+      done < <(inbox_sorted)
       [[ -z "$next" ]] && break
 
       local job; job=$(basename "$next"); job=${job%.md}
       local doing_file="$BUILDING/$(basename "$next")"
       mv "$next" "$doing_file"
       local w_eng w_cwd w_yolo w_key
-      w_eng=$(fm_get "$doing_file" engine "$DEFAULT_ENGINE")
+      # resolve the concrete engine now (explicit engine / engine-class) so the
+      # meta + status reflect what will actually run; run_worker re-resolves and
+      # is the authority on capability/engine gates.
+      w_eng=$(resolve_engine "$doing_file")
       w_cwd=$(fm_get "$doing_file" cwd "$PWD")
       w_yolo=$(fm_get "$doing_file" yolo "true")
       w_key=$(lock_key_for "$doing_file")
-      # write meta BEFORE launch (no pid yet), then append the worker pid from $!
+      # write meta BEFORE launch (no pid yet), then append the worker pid from $!.
+      # The new manifest fields (§5) are recorded here; only priority,
+      # capabilities, engine-class and idempotency-key are functional this
+      # phase — the rest are stored for `status`/audit but otherwise inert.
       {
         echo "job=$job"
-        echo "engine=$w_eng"
+        echo "engine=${w_eng:-<none>}"
         echo "cwd=$w_cwd"
         echo "yolo=$w_yolo"
         echo "lock=$w_key"
         echo "started=$(date +%s)"
+        echo "priority=$(fm_get "$doing_file" priority medium)"
+        echo "profile=$(fm_get "$doing_file" profile "")"
+        echo "engine_class=$(fm_get "$doing_file" engine-class "")"
+        echo "capabilities=$(fm_get "$doing_file" capabilities "")"
+        echo "prefers=$(fm_get "$doing_file" prefers "")"
+        echo "prefers_engine=$(fm_get "$doing_file" prefers-engine "")"
+        echo "budget=$(fm_get "$doing_file" budget "")"
+        echo "deps=$(fm_get "$doing_file" deps "")"
+        echo "deps_mode=$(fm_get "$doing_file" deps-mode "")"
+        echo "idempotency_key=$(fm_get "$doing_file" idempotency-key "")"
+        echo "retry=$(fm_get "$doing_file" retry "")"
+        echo "review_policy=$(fm_get "$doing_file" review-policy "")"
+        echo "artifacts=$(fm_get "$doing_file" artifacts "")"
+        echo "tracker_item=$(fm_get "$doing_file" tracker-item "")"
       } > "$STATE/$job.meta"
       run_worker "$doing_file" &
       { echo "pid=$!"; echo "pidstart=$(_pidstart "$!")"; } >> "$STATE/$job.meta"
@@ -490,6 +776,15 @@ cmd_status() {
     [[ "$age" -gt $(( STALL_MIN * 60 )) ]] && stall="${C_RED}⚠ stalled${C_RESET} "
     printf '    %s%-26s%s %-7s %3dm%02ds  pid %-6s %s%s%s%s\n' \
       "$C_BOLD" "$job" "$C_RESET" "$eng" $((el/60)) $((el%60)) "$pid" "$stall" "$C_DIM" "$last" "$C_RESET"
+    # manifest sub-line (Phase 1): priority + profile + capabilities + tracker-item
+    local m_prio m_prof m_caps m_trk extra=""
+    m_prio=$(grep '^priority=' "$f" | cut -d= -f2-); m_prof=$(grep '^profile=' "$f" | cut -d= -f2-)
+    m_caps=$(grep '^capabilities=' "$f" | cut -d= -f2-); m_trk=$(grep '^tracker_item=' "$f" | cut -d= -f2-)
+    [[ -n "$m_prio" ]] && extra+="prio=$m_prio "
+    [[ -n "$m_prof" ]] && extra+="profile=$m_prof "
+    [[ -n "$m_caps" ]] && extra+="caps=$m_caps "
+    [[ -n "$m_trk" ]] && extra+="tracker=$m_trk "
+    [[ -n "$extra" ]] && printf '      %s%s%s\n' "$C_DIM" "$extra" "$C_RESET"
   done
   $printed || printf '  %sno workers running%s\n' "$C_DIM" "$C_RESET"
   echo
@@ -671,18 +966,26 @@ ${C_BOLD}KANBAN${C_RESET}  inbox → building → review → testing → shipped
 
 ${C_BOLD}TASK FRONTMATTER${C_RESET} (top of each .md)
   ---
-  engine: devin
+  engine: devin        # devin|claude|codex|copilot. Explicit engine always wins
   cwd: /Users/you/code/repo
   yolo: true
   lock: my-repo        # optional; defaults to cwd. Jobs sharing a key run serially
   timeout: 45m         # optional; 90s|45m|2h|1d. On expiry -> failed (result=timeout)
   verify: pnpm -s test # optional; auto-QA gate. pass -> testing, fail -> failed
+  # --- Phase 1 manifest (active) ---
+  priority: high              # critical|high|medium|low (default medium). Picked highest-first, then oldest
+  engine-class: agentic-coder # used only if `engine` unset: agentic-coder->devin,claude,codex; chat-coder->copilot
+  prefers-engine: [claude]    # optional order hint for engine-class resolution
+  capabilities: [os:any, node>=20, has:git]  # hard host requirements; unmet -> failed (capability_mismatch)
+  idempotency-key: my-task-1  # re-adding same key+body = no-op; same key+different body = reject/supersede
+  # --- reserved (parsed + shown in status, but no-op until a later phase) ---
+  profile:  prefers:  budget:  deps:  deps-mode:  retry:  review-policy:  artifacts:  tracker-item:
   ---
 
 ${C_BOLD}ENV${C_RESET}
   AGENT_QUEUE_ROOT (=$QUEUE_ROOT)   AGENT_QUEUE_MAX (=$MAX_CONCURRENCY)
   AGENT_QUEUE_ENGINE (=$DEFAULT_ENGINE)   AGENT_QUEUE_VERIFY (default verify cmd)
-  DEVIN_BIN / CLAUDE_BIN / CODEX_BIN
+  DEVIN_BIN / CLAUDE_BIN / CODEX_BIN / COPILOT_BIN
 EOF
 }
 
diff --git a/agent-queue/docs/GIGAFACTORY_ROADMAP.md b/agent-queue/docs/GIGAFACTORY_ROADMAP.md
index 7367b01..ee26297 100644
--- a/agent-queue/docs/GIGAFACTORY_ROADMAP.md
+++ b/agent-queue/docs/GIGAFACTORY_ROADMAP.md
@@ -11,7 +11,7 @@
 | Phase | Theme | Status | % | Gate |
 | ----- | ----- | ------ | - | ---- |
 | **0** | Baseline (today) | ✅ shipped | 100% | `selftest.sh` green |
-| **1** | Manifest + profiles + capabilities + tracker adapter (single host) | ☐ not started | 0% | adapter e2e + selftest |
+| **1** | Manifest + profiles + capabilities + tracker adapter (single host) | ◐ in progress | 35% | adapter e2e + selftest |
 | **2** | Coordinator as platform-service module + Cosmos + multi-factory leasing | ☐ not started | 0% | fleet e2e + module tests |
 | **3** | Fleet control plane in tracker-web + DAG deps + budgets + scoring router | ☐ not started | 0% | web e2e + router tests |
 | **4** | Message bus + autoscaling + cross-OS capability marketplace | ☐ not started | 0% | load/chaos suite |
@@ -138,10 +138,10 @@ tracker-item: ITEM-789           # link back to the originating tracker task
 ```
 
 - [ ] Define the manifest schema (Zod in the service; documented YAML for `.md`).
-- [ ] Backward-compat: a Phase-0 `.md` (only `engine/cwd/yolo`) parses with all new fields defaulted.
-- [ ] **Capability grammar** defined: tokens are `key` (presence, e.g. `has:xcode`), `key:value` (e.g. `os:mac`, `engine:devin`), or `key<op>version` with `op ∈ {>=,>,=,<=,<}` (e.g. `node>=20`). `os:any` is a wildcard that matches every factory. A job matches a factory iff every required token is satisfied by the factory descriptor.
-- [ ] **`engine-class` taxonomy** defined as an enum (`agentic-coder`, `chat-coder`, `review-only`) with a documented engine→class map (`devin,claude,codex → agentic-coder`; `copilot → chat-coder`). If `engine` is set it wins; else the scheduler picks any free engine in the class honoring `prefers-engine`.
-- [ ] **`idempotency-key` semantics:** `key + content-hash` identical ⇒ no-op (returns existing job). Same `key`, **different** content ⇒ **rejected with 409** unless the prior job is still `queued`/`blocked` (then it is superseded). A re-`run`/`retry` of an existing job is **not** a new submit and never trips dedupe.
+- [x] Backward-compat: a Phase-0 `.md` (only `engine/cwd/yolo`) parses with all new fields defaulted. *(P1-S1: bash runner; Zod schema still P2. selftest backward-compat case green.)*
+- [x] **Capability grammar** defined: tokens are `key` (presence, e.g. `has:xcode`), `key:value` (e.g. `os:mac`, `engine:devin`), or `key<op>version` with `op ∈ {>=,>,=,<=,<}` (e.g. `node>=20`). `os:any` is a wildcard that matches every factory. A job matches a factory iff every required token is satisfied by the factory descriptor. *(P1-S1: `caps_match`/`detect_capabilities` in `agent-queue.sh`.)*
+- [x] **`engine-class` taxonomy** defined as an enum (`agentic-coder`, `chat-coder`, `review-only`) with a documented engine→class map (`devin,claude,codex → agentic-coder`; `copilot → chat-coder`). If `engine` is set it wins; else the scheduler picks any free engine in the class honoring `prefers-engine`. *(P1-S1: `resolve_engine`; `review-only` mapping reserved.)*
+- [x] **`idempotency-key` semantics:** `key + content-hash` identical ⇒ no-op (returns existing job). Same `key`, **different** content ⇒ **rejected with 409** unless the prior job is still `queued`/`blocked` (then it is superseded). A re-`run`/`retry` of an existing job is **not** a new submit and never trips dedupe. *(P1-S1: add-time dedupe; bash maps "409" → clear error, `queued` → still in `inbox/` ⇒ superseded.)*
 - [ ] **`deps` semantics:** a dep is satisfied when it reaches `shipped` (default) or `testing` if `deps-mode: soft`. Submit-time **cycle detection** rejects cyclic graphs; unmet deps put the job in `blocked` (not `queued`). Cross-factory deps require the coordinator (P2); single-host deps work in P1.
 - **Acceptance:** a manifest fixture suite parses/validates; invalid manifests fail with precise errors; capability-grammar + dep-cycle + idempotency-conflict cases covered.
 - **Verify gate:** schema unit tests (≥ 1 per field incl. defaults + 5 invalid cases + grammar/cycle/409 cases).
@@ -340,17 +340,19 @@ Each phase: **Goal → checklist → Exit criteria**. Don't start a phase until
 ### Phase 1 — Manifest + profiles + capabilities + tracker adapter (single host)
 **Goal:** richer single-host runner that understands profiles/capabilities and bridges to tracker — no distributed infra yet.
 
-- [ ] Extend `agent-queue.sh` frontmatter parsing for all new manifest fields (§5), defaulted + backward-compatible.
+> **Slice progress — P1-S1 (this commit):** manifest parsing (all §5 fields, defaulted + backward-compatible), `priority` ordering, capability detection+match gate, `engine-class` resolution, and `idempotency-key` dedupe are **done** on the bash runner. Profiles, `deps` DAG, `retry`/`budget.wall`, `allowed-scope`, the tracker adapter, and dashboard surfacing remain **for later slices**.
+
+- [x] Extend `agent-queue.sh` frontmatter parsing for all new manifest fields (§5), defaulted + backward-compatible. *(P1-S1)*
 - [ ] Add `profiles/` directory + profile resolution (persona injection, default verify/caps/scope) (§6).
-- [ ] Local capability detection + a job/factory capability match check before launch (§8 subset).
-- [ ] `priority` ordering in the inbox pick (replace pure FIFO with priority-then-age).
-- [ ] `deps` (DAG) blocking on a single host; `idempotency-key` dedupe on `add`.
+- [x] Local capability detection + a job/factory capability match check before launch (§8 subset). *(P1-S1: `detect_capabilities` + `caps_match`; mismatch ⇒ `failed/` `result=capability_mismatch`, agent never launched.)*
+- [x] `priority` ordering in the inbox pick (replace pure FIFO with priority-then-age). *(P1-S1: `inbox_sorted`; per-lock serialization preserved.)*
+- [ ] `deps` (DAG) blocking on a single host; `idempotency-key` dedupe on `add`. *(P1-S1: `idempotency-key` dedupe DONE; `deps` DAG blocking still pending.)*
 - [ ] `retry` with backoff into `failed`/requeue; `budget.wall` enforced (extends `timeout`).
 - [ ] `allowed-scope` guardrail (warn-only this phase) + post-run diff report.
 - [ ] **Tracker adapter** `aq from-tracker <ITEM>` + `aq to-tracker` event poster (§10 P1).
-- [ ] Dashboard shows profile + priority + capability tags + tracker-item link.
-- [ ] Update `selftest.sh` with: manifest parse fixtures, profile resolution, priority order, dep-block, idempotency, adapter round-trip (mock).
-- [ ] Update README + this doc's progress table.
+- [ ] Dashboard shows profile + priority + capability tags + tracker-item link. *(P1-S1: `status` shows priority/profile/caps/tracker-item; Node `dash` surfacing pending.)*
+- [ ] Update `selftest.sh` with: manifest parse fixtures, profile resolution, priority order, dep-block, idempotency, adapter round-trip (mock). *(P1-S1: added backward-compat, priority, capability-mismatch, engine-class, idempotency cases; profile/dep-block/adapter pending.)*
+- [x] Update README + this doc's progress table. *(P1-S1)*
 - **Exit criteria:** all boxes ✅; `selftest.sh` green; a tracker task → executed → tracker `done` with SHA comment, fully on one host; no regression to Phase-0 `.md` files.
 
 ### Phase 2 — Coordinator as platform-service module + Cosmos + multi-factory leasing
diff --git a/agent-queue/selftest.sh b/agent-queue/selftest.sh
index fa31217..c15b3e8 100755
--- a/agent-queue/selftest.sh
+++ b/agent-queue/selftest.sh
@@ -103,4 +103,131 @@ fi
 # status must not error
 "$AQ" status >/dev/null 2>&1 && pass "status runs clean"
 
+# ─────────────────────────────────────────────────────────────────────
+# Phase 1 — Slice 1 cases (manifest/priority/capabilities/engine-class/idempotency).
+# Each uses its OWN AGENT_QUEUE_ROOT; the no-op engine stub means no real CLI runs.
+# ─────────────────────────────────────────────────────────────────────
+
+# 7. backward-compat: a legacy engine/cwd/yolo-only .md still completes → review/
+export AGENT_QUEUE_ROOT="$tmp/queue-bc"
+bc="$tmp/bc-legacy.md"
+printf '%s\n' '---' 'engine: devin' "cwd: $work" 'yolo: true' '---' '' '# legacy task' > "$bc"
+"$AQ" init >/dev/null
+DEVIN_BIN="$stub" "$AQ" add "$bc" >/dev/null
+DEVIN_BIN="$stub" "$AQ" run --once >/dev/null 2>&1
+if ls "$AGENT_QUEUE_ROOT"/review/*.md >/dev/null 2>&1; then
+  pass "backward-compat: legacy engine/cwd/yolo-only .md → review/"
+else
+  ls -R "$AGENT_QUEUE_ROOT" >&2 || true
+  fail "legacy .md did not land in review/"
+fi
+
+# 8. priority: with --max 1, a 'critical' job queued AFTER a 'low' job runs first.
+# An order-recording devin-style stub appends each job's TASKID as it launches.
+export AGENT_QUEUE_ROOT="$tmp/queue-prio"
+ostub="$tmp/order-engine"
+cat > "$ostub" <<'STUB'
+#!/usr/bin/env bash
+# order-recording no-op engine stub (devin-style: --prompt-file <pf>)
+pf=""
+while [ $# -gt 0 ]; do
+  case "$1" in
+    --prompt-file) pf="${2:-}"; shift 2;;
+    *) shift;;
+  esac
+done
+if [ -n "${pf:-}" ] && [ -n "${AQ_ORDER:-}" ]; then
+  grep -m1 '^TASKID=' "$pf" >> "$AQ_ORDER" 2>/dev/null || true
+fi
+exit 0
+STUB
+chmod +x "$ostub"
+export AQ_ORDER="$tmp/prio-order.log"; : > "$AQ_ORDER"
+plow="$tmp/p-low.md"
+printf '%s\n' '---' 'engine: devin' "cwd: $work" 'yolo: true' 'priority: low' '---' '' 'TASKID=low' > "$plow"
+pcrit="$tmp/p-crit.md"
+printf '%s\n' '---' 'engine: devin' "cwd: $work" 'yolo: true' 'priority: critical' '---' '' 'TASKID=critical' > "$pcrit"
+"$AQ" init >/dev/null
+DEVIN_BIN="$ostub" "$AQ" add "$plow" >/dev/null
+sleep 1   # ensure the critical job has a strictly newer (later) queue timestamp
+DEVIN_BIN="$ostub" "$AQ" add "$pcrit" >/dev/null
+DEVIN_BIN="$ostub" "$AQ" run --once --max 1 >/dev/null 2>&1
+if [ "$(head -1 "$AQ_ORDER" 2>/dev/null || true)" = "TASKID=critical" ]; then
+  pass "priority: critical (queued later) ran before low"
+else
+  echo "--- execution order ---" >&2; cat "$AQ_ORDER" >&2 || true
+  fail "priority ordering did not pick the critical job first"
+fi
+
+# 9. capability mismatch: a job requiring an absent tool → failed/ with
+# result=capability_mismatch, and the agent is NEVER launched.
+export AGENT_QUEUE_ROOT="$tmp/queue-cap"
+launchflag="$tmp/cap-launched.flag"; rm -f "$launchflag"
+launchstub="$tmp/launch-engine"
+printf '#!/usr/bin/env bash\ntouch %q\nexit 0\n' "$launchflag" > "$launchstub"
+chmod +x "$launchstub"
+capjob="$tmp/cap.md"
+printf '%s\n' '---' 'engine: devin' "cwd: $work" 'yolo: true' \
+  'capabilities: [has:definitely-not-installed]' '---' '' '# capability task' > "$capjob"
+"$AQ" init >/dev/null
+DEVIN_BIN="$launchstub" "$AQ" add "$capjob" >/dev/null
+DEVIN_BIN="$launchstub" "$AQ" run --once >/dev/null 2>&1
+if ls "$AGENT_QUEUE_ROOT"/failed/*.md >/dev/null 2>&1 \
+   && grep -q '^result=capability_mismatch' "$AGENT_QUEUE_ROOT"/.state/*.meta 2>/dev/null; then
+  pass "capability mismatch → failed/ (result=capability_mismatch)"
+else
+  ls -R "$AGENT_QUEUE_ROOT" >&2 || true
+  fail "capability-mismatch job not routed to failed/ with result=capability_mismatch"
+fi
+if [ -e "$launchflag" ]; then
+  fail "agent WAS launched on capability mismatch (it must not be)"
+else
+  pass "capability mismatch: agent never launched"
+fi
+
+# 10. engine-class: a job with engine-class:agentic-coder and no engine, with
+# DEVIN_BIN stubbed (available), resolves to devin, runs, and lands in review/.
+export AGENT_QUEUE_ROOT="$tmp/queue-ec"
+ecjob="$tmp/ec.md"
+printf '%s\n' '---' 'engine-class: agentic-coder' "cwd: $work" 'yolo: true' '---' '' '# engine-class task' > "$ecjob"
+"$AQ" init >/dev/null
+DEVIN_BIN="$stub" "$AQ" add "$ecjob" >/dev/null
+DEVIN_BIN="$stub" "$AQ" run --once >/dev/null 2>&1
+if ls "$AGENT_QUEUE_ROOT"/review/*.md >/dev/null 2>&1; then
+  pass "engine-class: agentic-coder (no engine) resolved to devin → review/"
+else
+  ls -R "$AGENT_QUEUE_ROOT" >&2 || true
+  fail "engine-class job did not resolve+run to review/"
+fi
+
+# 11. idempotency-key dedupe on add.
+export AGENT_QUEUE_ROOT="$tmp/queue-idem"
+"$AQ" init >/dev/null
+ia="$tmp/idem-a.md"
+printf '%s\n' '---' 'engine: devin' "cwd: $work" 'yolo: true' 'idempotency-key: dedup-1' '---' '' 'alpha body' > "$ia"
+DEVIN_BIN="$stub" "$AQ" add "$ia" >/dev/null
+DEVIN_BIN="$stub" "$AQ" add "$ia" >/dev/null   # identical key+body → no-op
+cnt=$(find "$AGENT_QUEUE_ROOT/inbox" -maxdepth 1 -type f -name '*.md' 2>/dev/null | wc -l | tr -d ' ')
+[ "$cnt" = "1" ] && pass "idempotency: same key+body added twice → exactly 1 inbox file" \
+  || fail "idempotency: expected 1 inbox file after duplicate add, got $cnt"
+# same key, different body, prior STILL in inbox → supersede (still exactly 1)
+ib="$tmp/idem-b.md"
+printf '%s\n' '---' 'engine: devin' "cwd: $work" 'yolo: true' 'idempotency-key: dedup-1' '---' '' 'beta body (changed)' > "$ib"
+DEVIN_BIN="$stub" "$AQ" add "$ib" >/dev/null
+cnt=$(find "$AGENT_QUEUE_ROOT/inbox" -maxdepth 1 -type f -name '*.md' 2>/dev/null | wc -l | tr -d ' ')
+[ "$cnt" = "1" ] && pass "idempotency: same key + changed body, prior in inbox → superseded (1 file)" \
+  || fail "idempotency: expected 1 inbox file after supersede, got $cnt"
+# drain (prior leaves inbox → review), then same key + different body → REJECT
+DEVIN_BIN="$stub" "$AQ" run --once >/dev/null 2>&1
+ic="$tmp/idem-c.md"
+printf '%s\n' '---' 'engine: devin' "cwd: $work" 'yolo: true' 'idempotency-key: dedup-1' '---' '' 'gamma body (changed again)' > "$ic"
+if DEVIN_BIN="$stub" "$AQ" add "$ic" >/dev/null 2>&1; then
+  fail "idempotency: same key + different body (prior past inbox) should be rejected"
+else
+  pass "idempotency: same key + different body, prior past inbox → rejected"
+fi
+cnt=$(find "$AGENT_QUEUE_ROOT/inbox" -maxdepth 1 -type f -name '*.md' 2>/dev/null | wc -l | tr -d ' ')
+[ "$cnt" = "0" ] && pass "idempotency: a rejected add enqueues nothing" \
+  || fail "idempotency: rejected add should not enqueue (inbox=$cnt)"
+
 echo "self-test PASS"