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 skills add personamanagmentlayer/pcl --skill oracle-expertgit clone --depth 1 https://github.com/personamanagmentlayer/pclWrote 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/personamanagmentlayer/pcl/oracle-expert)<a href="https://agentmods.dev/skills/personamanagmentlayer/pcl/oracle-expert"><img src="https://agentmods.dev/badge/skills/personamanagmentlayer/pcl/oracle-expert/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/personamanagmentlayer/pcl/oracle-expert"><img src="https://agentmods.dev/badge/skills/personamanagmentlayer/pcl/oracle-expert.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00081 | $0.01195 |
| Opus 5 | $0.00041 | $0.00598 |
| Sonnet 5 | $0.00016 | $0.00239 |
| Haiku 4.5 | $0.00008 | $0.00120 |
Grade A, and why
oracle-expert 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 4d 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.
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.
How it starts
The opening of the file, as written. The whole thing — 169 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Oracle Database Expert
Core Concepts
Oracle Architecture
- Instance - Memory structures (SGA, PGA) and background processes
- Database - Physical files (data files, control files, redo logs)
- Tablespace - Logical storage container
- Schema - Collection of database objects owned by a user
- RAC - Real Application Clusters for high availability
- Data Guard - Disaster recovery and data protection
PL/SQL Programming
- Procedures - Reusable code blocks
- Functions - Return value blocks
- Packages - Grouped procedures and functions
- Triggers - Event-driven code execution
- Collections - Arrays and nested tables
- Exception Handling - Error management
Performance & Tuning
- Execution Plans - Query optimization paths
- AWR - Automatic Workload Repository
- ASH - Active Session History
- Statistics - Cost-based optimizer data
- Indexes - B-tree, bitmap, function-based
- Partitioning - Data distribution strategies
Best Practices
Database Design
- Normalize data to appropriate level (usually 3NF)
- Use appropriate data types
- Implement proper constraints (PK, FK, CHECK)
- Design efficient indexes
- Use partitioning for large tables
- Implement proper security model
PL/SQL Development
- Use bind variables to prevent SQL injection
- Implement exception handling
- Use bulk operations for better performance
- Follow naming conventions
- Document code thoroughly
- Use packages for code organization
Performance Optimization
- Analyze execution plans regularly
- Update statistics frequently
- Use appropriate indexes
- Implement result cache when applicable
- Optimize SQL queries before tuning database
- Monitor AWR reports
High Availability
- Implement Oracle RAC for clustering
- Configure Data Guard for disaster recovery
- Use RMAN for backup and recovery
- Implement flashback technology
- Monitor alert logs
- Regular testing of recovery procedures
Anti-Patterns
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 4d ago First seen · 169 lines · 81 tokens per session scan A e6dfda78daaf
oracle-expert is a skill published in the GitHub repository personamanagmentlayer/pcl (40 stars, last pushed 2d ago), licensed Apache-2.0. It adds 81 tokens to every session and 1,195 once invoked, about $0.0004 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 2026-09-05.
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