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Skillsrun-agentx

run-agentx

Testing & quality

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Updated 10-16 02:34

About this skill

Run AgentX

Setup

Resolve the endpoint URL, served model name, matching tokenizer, and requested concurrency from the task. Reuse the model checkpoint. If serving is needed, follow deployment to download missing weights and launch it. Enable prefix caching, streaming usage, and cached-token reporting. For vLLM, use --enable-prefix-caching --enable-prompt-tokens-details. Verify the context limit fits the traces with the model's tokenizer; never silently truncate requests.

Install the AgentX fork in a separate client environment. The pinned revision supplies the scenario and dataset loader used below; installing the upstream aiperf package is insufficient.

set -euo pipefail
export AGENTX_WORKDIR="${AGENTX_WORKDIR:-$PWD/agentx-work}"
python3.12 -m venv "$AGENTX_WORKDIR/venv"
source "$AGENTX_WORKDIR/venv/bin/activate"
python -m pip install 'aiperf @ git+https://github.com/SemiAnalysisAI/agentx-harness.git@56a0cf70f4c0359454ee4bd15a17770b541a3e3e'

Set AGENTX_DATASET to an accepted, date-pinned with-subagents alias from the pinned AgentX tutorial. The public loader downloads and caches the traces and prompt reconstruction assets. Record the resolved dataset revision; dated aliases can move. Prefer the deployed checkpoint's local tokenizer. If it requires custom code, add --tokenizer-trust-remote-code only after the user explicitly trusts its repository.

Choose concurrency

Sweep concurrency upward until KV-cache usage nears capacity, then refine around that point. Resweep when the model, hardware, or cache budget changes. Publish the full sweep and repeat promising points before claiming an advantage.

Run

In each shell, set AGENTX_WORKDIR to the setup directory and set AGENTX_DATASET, AGENTX_URL, AGENTX_MODEL, AGENTX_TOKENIZER, AGENTX_MAX_CONTEXT_LENGTH, and AGENTX_CONCURRENCY from the deployment and sweep. Use the server's base URL and actual context limit. Fix AGENTX_SEED across comparisons. First check endpoint health and repeat a long prompt to verify nonzero cached-token usage. Keep the scenario's default trajectory window and duration. Run each concurrency separately with a fresh artifact directory:

set -euo pipefail
source "${AGENTX_WORKDIR:?}/venv/bin/activate"
export HF_HOME="${HF_HOME:-$AGENTX_WORKDIR/hf-cache}"
export AIPERF_DATASET_MMAP_CACHE_DIR="$AGENTX_WORKDIR/dataset-cache"
mkdir -p "$AGENTX_WORKDIR/results"
AGENTX_RUN_DIR=$(mktemp -d "$AGENTX_WORKDIR/results/run-XXXXXX")
python -m pip freeze > "$AGENTX_RUN_DIR/client-packages.txt"
aiperf profile \
  --scenario inferencex-agentx-mvp \
  --url "${AGENTX_URL:?}" --model "${AGENTX_MODEL:?}" \
  --tokenizer "${AGENTX_TOKENIZER:?}" --endpoint-type chat \
  --public-dataset "${AGENTX_DATASET:?}" \
  --max-context-length "${AGENTX_MAX_CONTEXT_LENGTH:?}" \
  --concurrency "${AGENTX_CONCURRENCY:?}" \
  --random-seed "${AGENTX_SEED:?}" \
  --streaming --use-server-token-count --extra-inputs ignore_eos:true \
  --artifact-dir "$AGENTX_RUN_DIR" --ui simple \
  2>&1 | tee "$AGENTX_RUN_DIR/client.log"

Compare and report

Use the benchmarking guide for sweep isolation, performance metrics, and comparison controls. For AgentX:

  • Concurrency counts session trees. Report actual overlapping HTTP requests separately because child sessions can overlap.
  • Hold KV-cache bytes fixed when comparing KV formats. Keep the dataset, seed, context filter, and warmup fixed, and start a fresh server per point.
  • Report token-weighted cache hits from server-reported usage, cache usage, and preemptions. Missing usage means cache hits are unknown.
  • Report metadata.submission_valid and any metadata.submission_invalid_reasons from the result export. Flag invalid or missing validity instead of treating the run as a valid comparison.
  • Include request errors, unfinished requests, and warmup failures. Synthetic prompts measure serving performance, not model quality; shortened smoke runs are not benchmark results.