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concurrency-report

Report concurrency and parallelism for a session — how many agents ran in parallel, concurrency-lane utilization, peak parallel width, and serialization bottlenecks (sequential chains that could have run as parallel lanes) — using the Agent Monitor workflow intelligence API. Use when checking whether a multi-agent session used parallelism efficiently.

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  • SKILL.md2.5 KB
  • agents/openai.yaml278 B

SKILL.md (original)

Review the instructions the agent will receive before you install.

Concurrency Report

Report on parallel execution for one Claude Code session: lanes, peak width, utilization, and where work serialized.

Input

The user provides: $ARGUMENTS

A session ID. If empty, fetch GET /api/sessions?limit=1 and report on the most recent session, stating which one.

Data Sources

EndpointReturns
GET /api/workflows/{sessionId}The concurrency dataset (overlapping agent execution lanes with start/end timing) and the complexity dataset (numeric score from depth, breadth, and tool diversity)

Report Sections

1. Parallelism Summary

From concurrency: number of distinct lanes, peak parallel width (max agents running simultaneously), and total agents. Pair with the complexity score to judge whether the parallelism matched the work's size. Lanes: N · Peak parallel: M · Agents: K · Complexity: S

2. Lane Timeline

A per-lane list of the agents that occupied each lane in order: Lane 1: explore (0–12s) → code-review (12–48s) Lane 2: debugger (5–30s) Show overlapping windows so simultaneity is visible.

3. Utilization

LaneBusy timeIdle timeUtilization %
Plus an overall utilization figure (busy lane-time / total lane-time).

4. Serialization Bottlenecks

Identify sequential chains where one agent waited on the previous despite no apparent dependency — candidates to run as parallel lanes. State the chain and the wall-clock time it cost. Only flag chains the concurrency timing data actually shows as sequential.

Output

  • Markdown tables for utilization; a fenced list for the lane timeline.
  • Durations in human units (e.g. 48s, 2m 10s); percentages to whole numbers.
  • Use ▲/▼ when comparing utilization against an even-distribution baseline.
  • Cite only timing returned by the API; never invent lane overlaps or durations.
  • If the session ran a single agent (no concurrency), say so plainly rather than inventing lanes.
  • If the dashboard is unreachable, tell the user to start it with npm start from the repo root.

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