diff --git a/benchmarks/single_node/agentic/qwen3.5_fp8_mi325x_mtp.sh b/benchmarks/single_node/agentic/qwen3.5_fp8_mi325x_mtp.sh
new file mode 100755
index 0000000000..7815953361
--- /dev/null
+++ b/benchmarks/single_node/agentic/qwen3.5_fp8_mi325x_mtp.sh
@@ -0,0 +1,188 @@
+#!/usr/bin/env bash
+set -euo pipefail
+set -x
+
+# Agentic trace replay benchmark for Qwen3.5 FP8 on MI325X (gfx942) using SGLang
+# with MTP speculative decoding. First Qwen3.5 AgentX recipe on MI325X; it is
+# spec-decode only, per the AgentX policy that new agentic arms ship with
+# speculative decoding enabled rather than as an STP/MTP A/B (MODELS.md).
+#
+# Structure follows the proven agentic/qwen3.5_fp8_mi355x_sglang.sh replay path,
+# including its ROCm HiCache settings: Qwen3.5's hybrid Mamba path runs SGLang's
+# no_buffer scheduler, which requires page_size=1, and the kernel/page_first
+# HiCache transfer path faults on first prefill in that mode on ROCm, so the
+# safer direct/layer_first copy path is kept. Attention backend is triton, as on
+# the MI355X agentic recipe -- the fixed-seq-len gfx942 recipes use aiter, but
+# the agentic replay path is validated on triton. --mem-fraction-static is 0.75,
+# matching fixed_seq_len/qwen3.5_fp8_mi325x.sh; MI325X's 256 GB per GPU buys a
+# larger KV pool at the same static fraction than MI300X's 192 GB.
+#
+# Speculative decoding mirrors fixed_seq_len/qwen3.5_fp8_mi325x_mtp.sh, the
+# fixed-seq-len recipe on this same SKU: --speculative-algorithm EAGLE with 3
+# steps, eagle-topk 1 and 4 draft tokens, i.e. 3 speculative tokens per step.
+#
+# Throughput runs pin acceptance to the committed golden AL through SGLang's
+# simulated-acceptance path; the EVAL_ONLY accuracy run leaves it off and keeps
+# real verification. See the SGLANG_SIMULATE_ACC_* block.
+#
+# Required env vars:
+#   MODEL, TP, CONC, KV_OFFLOADING, TOTAL_CPU_DRAM_GB, RESULT_DIR
+#
+# KV_OFFLOADING=dram requires KV_OFFLOAD_BACKEND=hicache.
+
+source "$(dirname "$0")/../../benchmark_lib.sh"
+
+check_env_vars MODEL TP CONC KV_OFFLOADING TOTAL_CPU_DRAM_GB RESULT_DIR DURATION EP_SIZE
+
+SCHEDULER_RECV_INTERVAL=${SCHEDULER_RECV_INTERVAL:-30}
+
+if [[ -n "${SLURM_JOB_ID:-}" ]]; then
+    echo "JOB $SLURM_JOB_ID running on ${SLURMD_NODENAME:-unknown}"
+fi
+
+# `hf download` creates the target dir if missing and is itself idempotent.
+# When MODEL_PATH is unset (stand-alone runs), fall back to the HF_HUB_CACHE
+# Either way, MODEL_PATH is what the server is launched with.
+if [[ -n "${MODEL_PATH:-}" ]]; then
+    if [[ ! -d "$MODEL_PATH" || -z "$(ls -A "$MODEL_PATH" 2>/dev/null)" ]]; then
+        hf download "$MODEL" --local-dir "$MODEL_PATH"
+    fi
+else
+    hf download "$MODEL"
+    export MODEL_PATH="$MODEL"
+fi
+rocm-smi || true
+amd-smi || true
+
+# ---- Resolve traces and install deps ----------------------------------------
+resolve_trace_source
+install_agentic_deps
+
+# ---- Server config ----------------------------------------------------------
+SERVER_LOG="$RESULT_DIR/server.log"
+mkdir -p "$RESULT_DIR"
+
+CACHE_ARGS=()
+WARMUP_ARGS=()
+CUDA_GRAPH_MAX_BS="$CONC"
+if require_agentic_kv_offload_backend hicache; then
+    # Qwen3.5 allocates one KV and one Mamba host pool per TP rank.
+    REQUESTED_HICACHE_TOTAL_GB="${HICACHE_TOTAL_CPU_DRAM_GB:-$TOTAL_CPU_DRAM_GB}"
+    if [ "$REQUESTED_HICACHE_TOTAL_GB" -gt "$TOTAL_CPU_DRAM_GB" ]; then
+        echo "Error: requested HiCache pool ${REQUESTED_HICACHE_TOTAL_GB} GB exceeds configured capacity ${TOTAL_CPU_DRAM_GB} GB" >&2
+        exit 1
+    fi
+    TOTAL_CPU_DRAM_GB="$REQUESTED_HICACHE_TOTAL_GB"
+    HICACHE_HOST_POOL_COUNT="${HICACHE_HOST_POOL_COUNT:-2}"
+    HICACHE_MAX_SIZE_GB_PER_RANK_POOL="${HICACHE_MAX_SIZE_GB_PER_RANK_POOL:-${HICACHE_MAX_SIZE_GB_PER_RANK:-180}}"
+    HICACHE_WRITE_POLICY="${HICACHE_WRITE_POLICY:-write_through_selective}"
+    # Qwen3.5's hybrid Mamba path runs SGLang's no_buffer scheduler on MI355X,
+    # which requires page_size=1. The kernel/page_first HiCache transfer path
+    # faults on first prefill in this mode on ROCm, so keep the default on the
+    # safer direct/layer_first copy path. These remain env-overridable.
+    HICACHE_PAGE_SIZE="${HICACHE_PAGE_SIZE:-1}"
+    HICACHE_IO_BACKEND="${HICACHE_IO_BACKEND:-direct}"
+    HICACHE_MEM_LAYOUT="${HICACHE_MEM_LAYOUT:-layer_first}"
+    # SGLang --hicache-size is per rank per host pool, while the workflow
+    # input is a node-total DRAM budget. Divide by TP and the number of
+    # host pools unless HICACHE_SIZE_GB is set directly for one-off tuning.
+    MAX_HICACHE_SIZE_GB=$((TOTAL_CPU_DRAM_GB / TP / HICACHE_HOST_POOL_COUNT))
+    HICACHE_SIZE_GB="${HICACHE_SIZE_GB:-$MAX_HICACHE_SIZE_GB}"
+    if [ "$HICACHE_SIZE_GB" -gt "$MAX_HICACHE_SIZE_GB" ]; then
+        echo "Error: HICACHE_SIZE_GB=$HICACHE_SIZE_GB exceeds configured per-pool limit $MAX_HICACHE_SIZE_GB" >&2
+        exit 1
+    fi
+    if [ "$HICACHE_SIZE_GB" -gt "$HICACHE_MAX_SIZE_GB_PER_RANK_POOL" ]; then
+        HICACHE_SIZE_GB="$HICACHE_MAX_SIZE_GB_PER_RANK_POOL"
+    fi
+    if [ "$HICACHE_SIZE_GB" -lt 1 ]; then
+        echo "Error: computed HICACHE_SIZE_GB=$HICACHE_SIZE_GB from TOTAL_CPU_DRAM_GB=$TOTAL_CPU_DRAM_GB, TP=$TP, HICACHE_HOST_POOL_COUNT=$HICACHE_HOST_POOL_COUNT" >&2
+        exit 1
+    fi
+    echo "HiCache CPU pool: ${HICACHE_SIZE_GB} GB per rank per host pool across TP=${TP}, host_pool_count=${HICACHE_HOST_POOL_COUNT}"
+    CACHE_ARGS=(
+        --page-size "$HICACHE_PAGE_SIZE"
+        --enable-hierarchical-cache
+        --hicache-size "$HICACHE_SIZE_GB"
+        --hicache-io-backend "$HICACHE_IO_BACKEND"
+        --hicache-mem-layout "$HICACHE_MEM_LAYOUT"
+        --hicache-write-policy "$HICACHE_WRITE_POLICY"
+    )
+    # HiCache startup reaches API readiness, but SGLang's internal warmup
+    # request has timed out after 600s on this Qwen MI355X path. Let aiperf
+    # own benchmark traffic instead of blocking server readiness on it.
+    WARMUP_ARGS=(--skip-server-warmup)
+    # Keep request concurrency as the swept variable, but do not force HiCache
+    # runs to capture ROCm graphs at every high concurrency point.
+    HICACHE_CUDA_GRAPH_MAX_BS="${HICACHE_CUDA_GRAPH_MAX_BS:-16}"
+    if [ "$HICACHE_CUDA_GRAPH_MAX_BS" -lt "$CUDA_GRAPH_MAX_BS" ]; then
+        CUDA_GRAPH_MAX_BS="$HICACHE_CUDA_GRAPH_MAX_BS"
+    fi
+fi
+
+echo "Starting SGLang server..."
+export PYTHONNOUSERSITE=1
+export SGLANG_ENABLE_SPEC_V2=1
+
+# 3 speculative tokens per step (num-steps 3, eagle-topk 1, 4 draft tokens),
+# the same MTP shape as fixed_seq_len/qwen3.5_fp8_mi325x_mtp.sh.
+SPEC_ARGS=(
+    --speculative-algorithm EAGLE
+    --speculative-num-steps 3
+    --speculative-eagle-topk 1
+    --speculative-num-draft-tokens 4
+)
+
+# AgentX pins acceptance to the committed golden AL so submissions are compared
+# on system performance at a fixed acceptance target rather than on draft-head
+# quality (golden_al_distribution/README.md). 3.39 is the Qwen3.5 MTP curve at
+# num_speculative_tokens=3, thinking_on (golden_al_distribution/qwen3.5_mtp.yaml)
+# -- the same value the GB300 Qwen3.5 AgentX srt-slurm recipes pin.
+# SGLANG_SIMULATE_ACC_TOKEN_MODE landed in SGLang v0.5.16, which is the image
+# this recipe pins.
+#
+# EVAL_ONLY leaves simulated acceptance off: it commits drafted tokens
+# regardless of the target logits, so generated text is wrong and the eval would
+# score ~0.
+if [ "${EVAL_ONLY:-false}" != "true" ]; then
+    export SGLANG_SIMULATE_ACC_LEN=3.39
+    export SGLANG_SIMULATE_ACC_METHOD=match-expected
+    export SGLANG_SIMULATE_ACC_TOKEN_MODE=real-draft-token
+fi
+
+{ set +x; } 2>/dev/null
+SGLANG_CMD=(
+    python3 -m sglang.launch_server
+    --attention-backend triton
+    --model-path "$MODEL_PATH" --served-model-name "$MODEL"
+    --host=0.0.0.0
+    --port "$PORT"
+    --tensor-parallel-size "$TP"
+    --ep-size "$EP_SIZE"
+    --trust-remote-code
+    --tokenizer-worker-num 6
+    --enable-aiter-allreduce-fusion
+    --cuda-graph-max-bs "$CUDA_GRAPH_MAX_BS"
+    --max-running-requests "$CONC"
+    --max-prefill-tokens 32768
+    --scheduler-recv-interval "$SCHEDULER_RECV_INTERVAL"
+    --mem-fraction-static 0.75
+    --enable-metrics
+    "${SPEC_ARGS[@]}"
+    "${CACHE_ARGS[@]}"
+    "${WARMUP_ARGS[@]}"
+)
+printf '%q ' "${SGLANG_CMD[@]}" | tee "$RESULT_DIR/sglang_command.txt"
+printf '\n' | tee -a "$RESULT_DIR/sglang_command.txt"
+"${SGLANG_CMD[@]}" > "$SERVER_LOG" 2>&1 &
+SERVER_PID=$!
+echo "Server PID: $SERVER_PID"
+
+wait_for_server_ready --port "$PORT" --server-log "$SERVER_LOG" --server-pid "$SERVER_PID"
+
+if [ "${EVAL_ONLY}" = "true" ]; then
+    run_eval --port "$PORT"
+else
+    build_replay_cmd "$RESULT_DIR"
+    run_agentic_replay_and_write_outputs "$RESULT_DIR"
+fi
diff --git a/configs/amd-master.yaml b/configs/amd-master.yaml
index b15ae5bccd..b4c9a2f853 100644
--- a/configs/amd-master.yaml
+++ b/configs/amd-master.yaml
@@ -1495,6 +1495,32 @@ qwen3.5-fp8-mi325x-sglang-mtp:
       search-space:
       - { tp: 8, ep: 1, conc-start: 4, conc-end: 64, spec-decoding: mtp }
 
+# First Qwen3.5 AgentX (agentic-coding) recipe on MI325X, shipped spec-decode-only
+# per the AgentX policy that new agentic arms enable speculative decoding rather
+# than running a separate STP baseline (MODELS.md). Same SGLang EAGLE MTP shape as
+# the fixed-seq-len MI325X entry above (num-steps 3, eagle-topk 1, 4 draft tokens
+# = 3 speculative tokens), with simulated acceptance pinned to the golden AL 3.39
+# (golden_al_distribution/qwen3.5_mtp.yaml, thinking_on, K=3). Image moves to
+# lmsysorg/sglang:v0.5.16-rocm720-mi30x because SGLANG_SIMULATE_ACC_TOKEN_MODE
+# only exists from v0.5.16. Replay path follows the MI355X Qwen3.5 AgentX recipe
+# (triton attention, HiCache on the page_size=1 direct/layer_first copy path
+# required by Qwen3.5's hybrid Mamba no_buffer scheduler on ROCm). Conc bands run
+# past the MI300X entry's because 256 GB per GPU holds a larger KV pool.
+qwen3.5-fp8-mi325x-sglang-agentic-mtp:
+  image: lmsysorg/sglang-rocm:v0.5.16-rocm720-mi30x-20260730
+  model: Qwen/Qwen3.5-397B-A17B-FP8
+  model-prefix: qwen3.5
+  runner: cluster:mi325x-amds
+  precision: fp8
+  framework: sglang
+  multinode: false
+  scenarios:
+    agentic-coding:
+    - dram-utilization: 0.80
+      search-space:
+      - { tp: 8, ep: 1, spec-decoding: mtp, kv-offloading: none, conc-list: [1, 4, 8, 12, 16] }
+      - { tp: 8, ep: 1, spec-decoding: mtp, kv-offloading: dram, kv-offload-backend: { name: hicache }, conc-list: [4, 8, 12, 16] }
+
 qwen3.5-fp8-mi355x-sglang-agentic-hicache:
   image: lmsysorg/sglang-rocm:v0.5.12-rocm720-mi35x-20260521
   model: Qwen/Qwen3.5-397B-A17B-FP8
diff --git a/perf-changelog.yaml b/perf-changelog.yaml
index 4c22ed9198..94ed829949 100644
--- a/perf-changelog.yaml
+++ b/perf-changelog.yaml
@@ -5347,3 +5347,14 @@
     - "Add seven checked-in srt-slurm recipes selected one-to-one by the 8K/1K prefill/decode topology and concurrency entries."
     - "Image: vllm/vllm-openai:v0.25.1"
   pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/2360
+
+- config-keys:
+    - qwen3.5-fp8-mi325x-sglang-agentic-mtp
+  description:
+    - "Add the first Qwen3.5 AgentX (agentic-coding) recipe on MI325X: Qwen3.5-397B-A17B FP8 with SGLang, spec-decoding=mtp only, routed to benchmarks/single_node/agentic/qwen3.5_fp8_mi325x_mtp.sh. Shipped spec-decode-only per the AgentX policy in MODELS.md -- agentic recipes are run and published with speculative decoding enabled rather than as an STP/MTP A/B."
+    - "Speculative config mirrors fixed_seq_len/qwen3.5_fp8_mi325x_mtp.sh, the fixed-seq-len recipe on this same SKU: SGLANG_ENABLE_SPEC_V2=1 with --speculative-algorithm EAGLE, --speculative-num-steps 3, --speculative-eagle-topk 1, --speculative-num-draft-tokens 4 -- 3 speculative tokens per verification step."
+    - "Throughput runs pin SGLang simulated acceptance to the committed golden AL: SGLANG_SIMULATE_ACC_LEN=3.39 (Qwen3.5 MTP curve at K=3, thinking_on, golden_al_distribution/qwen3.5_mtp.yaml), SGLANG_SIMULATE_ACC_METHOD=match-expected, SGLANG_SIMULATE_ACC_TOKEN_MODE=real-draft-token -- the triple golden_al_distribution/README.md prescribes for SGLang. EVAL_ONLY runs leave simulated acceptance off and keep real verification."
+    - "Image lmsysorg/sglang-rocm:v0.5.16-rocm720-mi30x-20260730 (tag verified on Docker Hub). v0.5.16 is required because SGLANG_SIMULATE_ACC_TOKEN_MODE is only read from that release. The dated sglang-rocm build is used rather than the plain lmsysorg/sglang:v0.5.16-rocm720-mi30x tag: that image ships Python 3.10.12 in /opt/venv, and install_agentic_deps builds the AgentX venv from $(command -v python3), so uv cannot resolve aiperf (which requires Python >=3.11,<3.14) and the job dies ~30s in before serving. The lmsysorg/sglang-rocm dated family ships CPython 3.11.15 and is what the working MI355X AgentX recipes run."
+    - "Replay path follows the MI355X Qwen3.5 AgentX recipe rather than the fixed-seq-len gfx942 one: --attention-backend triton (the fixed-seq-len ROCm recipes use aiter, but the agentic corpus is validated on triton), HiCache host-DRAM offload forced onto the page_size=1 direct/layer_first copy path because Qwen3.5's hybrid Mamba path runs SGLang's no_buffer scheduler and the kernel/page_first transfer path faults on first prefill on ROCm, --skip-server-warmup so aiperf owns benchmark traffic, and the HiCache cudagraph-batch cap. --mem-fraction-static stays 0.75 as on fixed_seq_len/qwen3.5_fp8_mi325x.sh."
+    - "Search space now runs on the AgentX MTP concurrency grid: the GPU-resident row [1, 4, 8, 12, 16] and the HiCache row [4, 8, 12, 16]. Every step is at least 2 concurrency apart and every arm stops hard at conc 16 -- single-step sampling cannot separate configurations by more than run-to-run noise on the agentic corpus, and past conc 16 these SKUs are into the post-HBM-cliff thrashing regime that the non-MTP sweeps already characterized, which is not worth one GPU job per point."
+  pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/2430