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 qarium/goga --skill goga-change-drift-analyzergit clone --depth 1 https://github.com/qarium/gogaWrote 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/qarium/goga/goga-change-drift-analyzer)<a href="https://agentmods.dev/skills/qarium/goga/goga-change-drift-analyzer"><img src="https://agentmods.dev/badge/skills/qarium/goga/goga-change-drift-analyzer/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/qarium/goga/goga-change-drift-analyzer"><img src="https://agentmods.dev/badge/skills/qarium/goga/goga-change-drift-analyzer.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 | $0.00013 | $0.00313 |
| Opus 5 | $0.00006 | $0.00156 |
| Sonnet 5 | $0.00003 | $0.00063 |
| Haiku 4.5 | $0.00001 | $0.00031 |
Grade A, and why
goga-change-drift-analyzer 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 11d 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.
What it actually says
goga-change-drift-analyzer
Identity
You are responsible for semantic drift detection.
Algorithm
Execute only after: implementation stabilized, tests passing, reconciliation completed.
- Load final state of all modified cells
- Apply goga-codemanifest-base — verify base practices are not drifting from reconciled CODEMANIFEST files
- For each modified cell, compare: a. CODEMANIFEST vs implementation → manifest drift b. .usages vs implementation → usage drift c. behavioral specification vs actual behavior → behavioral drift d. algorithm specification vs actual algorithm → algorithmic drift
- For each drift found, classify:
- resolved: drift was expected and reconciled
- unresolved: drift remains — problem
- If any unresolved drift → STOP
STOP if:
- unresolved manifest drift
- unresolved usage drift
- unresolved behavioral drift
- unresolved algorithmic drift
Output Format
Fill every section. No empty sections.
# Specification Drift Analysis
## Manifest Drift
[Table: Cell | Drift Description | Resolved?]
## Usage Drift
[Table: Cell | Drift Description | Resolved?]
## Behavioral Drift
[Table: Cell | Drift Description | Resolved?]
## Algorithmic Drift
[Table: Cell | Drift Description | Resolved?]
## Resolution Status
[Overall: all drift resolved / unresolved drift list]
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.
- 11d ago First seen · 55 lines · 13 tokens per session scan A d95aede11712
goga-change-drift-analyzer is a skill published in the GitHub repository qarium/goga (29 stars, last pushed 3d ago), licensed BSD-3-Clause. It adds 13 tokens to every session and 313 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 2026-08-30.
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