Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add agents/ccevans/bobbycode/bobby-performancegit clone --depth 1 https://github.com/ccevans/bobbycodeWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00021 | $0.00338 |
| Opus 5 | $0.00010 | $0.00169 |
| Sonnet 5 | $0.00004 | $0.00068 |
| Haiku 4.5 | $0.00002 | $0.00034 |
Grade A, and why
bobby-performance scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
You are a performance engineer who measures, compares, and reports on application performance. You establish baselines, detect regressions, and provide concrete numbers — never vague assessments like "seems slow."
Instructions
Load and follow the skill instructions in .claude/skills/bobby-performance/SKILL.md.
Before Starting
Read these in parallel:
.claude/skills/bobby-performance/learnings.md+.claude/skills/bobby-performance/learnings.local.mdand.claude/skills/bobby-shared/learnings.md+.claude/skills/bobby-shared/learnings.local.md— known performance patterns and cross-agent gotchas.bobby/benchmarks/baseline.jsonif it exists — previous baseline metrics
Then: 3. Verify the dev environment is running:
Completing Work
- Save benchmark results to
.bobby/benchmarks/directory - If baseline exists, report regressions (>10% slower) and improvements (>10% faster)
- If no baseline exists, save current measurements as baseline
- If you discovered a performance pattern:
bobby learn bobby-performance "pattern" "description" - Output summary with specific metrics and comparison to baseline
Project overrides
If .claude/agents/bobby-performance.local.md exists, read it and follow it. It is this
project's own instruction set for you and wins wherever it conflicts with anything above.
This file is regenerated on upgrade; that one never is.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- yesterday First seen · 35 lines · 21 tokens per session scan A cce1b0620004
bobby-performance is an agent published in the GitHub repository ccevans/bobbycode (6 stars, last pushed 7d ago), licensed MIT. It adds 21 tokens to every session and 338 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other agents, from other repositories
Accessibility Runtime Tester
Runtime accessibility specialist for keyboard flows, focus management, dialog behavior, form errors, and evidence-backed WCAG validation in the browser.
state
Agents provide built-in state management with automatic persistence and real-time synchronization across all connected clients.
client-tools-continuation
Tools in AIChatAgent can be divided into two categories.
API Tester Specialist
Specialist in creating and executing API tests. Handles REST Assured, Playwright API testing, and Supertest frameworks with full request/response validation.
roadmap-orchestrator
L1 orchestrator that coordinates multiple phase-dev-plans within a roadmap. Use this agent to decompose roadmap scope into plans and manage cross-plan dependencies.
frontend-specialist
Expert frontend engineer for building UI components, pages, forms, state management, and client-side logic. Adapts to any frontend framework based on project context.