Add self-update guidance to nemo-retriever skill

[jioffe502]

Summary

• add a terse Self-update section to the nemo-retriever skill
• route durable CLI/output/failure discoveries into the narrowest reference doc

NVSkills signature

• left skills/nemo-retriever/skill.oms.sig unchanged intentionally; I will request /nvskills-ci on this PR so the signature workflow can refresh it

Testing

• git diff --check

[jioffe502]

/nvskills-ci

[greptile-apps]

Greptile Summary

This PR adds a terse "Self-update" section to skills/nemo-retriever/SKILL.md, instructing the skill agent when and how to keep the skill current as the retriever CLI evolves.

• Defines four triggers for updating the skill (CLI changes, missing input types, new failure modes, eval misses) and maps each fact category to the narrowest reference file (install.md, setup.md, query.md, troubleshooting.md, cli/*.md).
• Adds a guard against low-confidence updates: facts from a single corpus, environment, or transient failure should be excluded.

Confidence Score: 5/5

Safe to merge — the change is a documentation-only addition to a skill markdown file with no impact on code paths.

The change adds 15 lines of prose to a skill guidance document. It introduces no code, configuration, or schema changes, and the new section aligns cleanly with the existing structure and tone of the file.

No files require special attention.

Important Files Changed

Filename	Overview
skills/nemo-retriever/SKILL.md	Documentation-only addition of a Self-update section; prose is clear, concise, and consistent with the existing skill structure.

_{Reviews (1): Last reviewed commit: "Add nemo retriever skill self-update gui..." | Re-trigger Greptile}

[jioffe502]

/nvskills-ci