Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/greglas75/zuvonpx agentmods add skills/greglas75/zuvo/performance-auditWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/greglas75/zuvo/performance-audit)<a href="https://agentmods.dev/skills/greglas75/zuvo/performance-audit"><img src="https://agentmods.dev/badge/skills/greglas75/zuvo/performance-audit/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/greglas75/zuvo/performance-audit"><img src="https://agentmods.dev/badge/skills/greglas75/zuvo/performance-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Excessive Agency · line 394 Skill allows unbounded resource consumption (API calls, storage, compute). Without rate limits or quotas, a compromised or misbehaving agent can cause denial-of-service or cost overruns.Fix: Set explicit rate limits, timeouts, and resource quotas for API calls, file operations, and compute. Implement circuit breakers for runaway loops.
What 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 5.1 | $0.00090 | $0.07355 |
| Opus 5.5 | $0.00036 | $0.02942 |
| Sonnet 5.5 | $0.00018 | $0.01471 |
| Haiku 4.5 | $0.00009 | $0.00736 |
Grade A, and why
performance-audit scanned grade A with 1 finding 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 1mo ago.
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.
Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
readFileSync, writeFileSync, execSync, crypto.pbkdf2Sync How it starts
The opening of the file, as written. The whole thing — 713 lines — stays where its author put it; the contents beside it link to each section on GitHub.
zuvo:performance-audit
Measure, score, and prioritize performance across the entire stack. Every finding carries an Impact Model (estimated savings, blast radius, confidence level) so the team can act on data instead of hunches.
When to use: Periodic health check, before major release, after heavy feature
work, when users report slowness, before scaling infrastructure.
When NOT to use: Code quality (zuvo:review), security (/security-audit),
test quality (/test-audit).
Guiding Principles
- Performance claims without measurement are opinions, not findings.
- "Slow" without a baseline and a target is meaningless.
- Optimization without profiling is premature optimization.
- When evidence is absent, report INSUFFICIENT DATA -- never guess.
Mandatory File Loading
Read every file below before starting. Print the checklist.
CORE FILES LOADED:
1. ../../shared/includes/codesift-setup.md -- [READ | MISSING -> STOP]
2. ../../shared/includes/env-compat.md -- [READ | MISSING -> STOP]
3. ../../rules/cq-patterns.md -- [READ | MISSING -> STOP]
4. ../../shared/includes/run-logger.md -- [READ | MISSING -> STOP]
5. ../../shared/includes/retrospective.md -- [READ | MISSING -> STOP]
If any file is MISSING, STOP. Do not proceed from memory.
Conditional Files
| File | Load when |
|---|---|
../../rules/cq-checklist.md |
Scoring cross-cutting CQ overlap (CQ6 resources, CQ7 unbounded, CQ17 N+1) |
Argument Parsing
| Token | Behavior |
|---|---|
(empty) or full |
All applicable dimensions across the entire project |
[path] |
Scope to a directory or module |
[file] |
Deep single-file audit (algorithms, memory, complexity) |
--frontend |
D1-D3, D10 only |
--backend |
D4-D5, D7-D8, D11-D12 only |
--db |
D7 only (database queries and schema) |
--bundle |
D2 only (bundle weight analysis) |
Safety Gate
This audit is read-only. The only write target is zuvo/audits/. Do not modify
source files, configs, build output, or runtime environments. Tooling probes
(bundle analysis, Lighthouse) may be invoked but must not alter the build.
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.
- 1mo ago Changed · -2 lines 0d02514f7a1e
- 1mo ago First seen · 715 lines · 90 tokens per session scan A 08bee70c27fb
performance-audit is a skill published in the GitHub repository greglas75/zuvo (8 stars, last pushed today), licensed MIT. It adds 90 tokens to every session and 7,355 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other skills, from other repositories
ring:using-lib-systemplane
Using lib-systemplane, the hot-reload runtime-config plane (Postgres LISTEN/NOTIFY or MongoDB change streams), in two modes. Sweep Mode detects DIY config reload (SIGHUP, fsnotify, viper, pgx LISTEN), manual tenant-scoping, hand-built admin CRUD, and v4 residue. Reference Mode catalogs client lifecycle and…
ring:using-outbox
Using the transactional-outbox pattern across lib-streaming (writer) and lib-commons/v5/commons/outbox (repository + relay), in two modes. Sweep Mode detects DIY outbox tables, hand-rolled relay loops, send-and-pray emits, missing WithOutboxTx wrapping, and broker calls inside DB transactions. Reference Mode catalogs…
ring:mapping-service-resources
Mapping a Go service's Service -> Module -> Resource hierarchy for dispatch-layer registration: detects modules and per-module PostgreSQL/MongoDB/RabbitMQ resources, database names, and shared databases, generates MongoDB index migration pairs (.up.json/.down.json), detects existing Postgres migrations, emits an HTML…
ring:migrating-to-lib-observability
Migrating a Lerian Go app off lib-commons observability imports (deprecated shims or removed APIs) to lib-observability via a fixed mapping table, then bumps go.mod and validates the build; ring:backend-go applies the edits. Covers log/zap/runtime/assert, opentelemetry/tracing, HTTP middleware, context helpers, and…
ring:using-lib-streaming
Using lib-streaming, Lerian's producer-only event publication library (Kafka/SQS/RabbitMQ/EventBridge), in two modes. Sweep Mode detects DIY publishers (franz-go, sarama, amqp091, watermill, raw AWS SDK) and re-rolled manifests/breakers. Reference Mode catalogs the Builder/Emitter/Catalog facade. Companion to…
ring:using-lib-observability
Using lib-observability v1.1.0, Lerian's OpenTelemetry foundation (lib-commons, lib-systemplane, lib-streaming depend on it), in two modes. Sweep Mode detects DIY zap/slog logging, raw OTel metrics, hand-rolled redaction, and hard-coded attribute strings. Reference Mode catalogs the log, metrics, zap, redaction, and…