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 pedrol-cmd/brain-drin --skill drin-feature-flag-workflowgit clone --depth 1 https://github.com/pedrol-cmd/brain-drinWrote 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/pedrol-cmd/brain-drin/drin-feature-flag-workflow)<a href="https://agentmods.dev/skills/pedrol-cmd/brain-drin/drin-feature-flag-workflow"><img src="https://agentmods.dev/badge/skills/pedrol-cmd/brain-drin/drin-feature-flag-workflow/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/pedrol-cmd/brain-drin/drin-feature-flag-workflow"><img src="https://agentmods.dev/badge/skills/pedrol-cmd/brain-drin/drin-feature-flag-workflow.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00023 | $0.00211 |
| Opus 5 | $0.00012 | $0.00105 |
| Sonnet 5 | $0.00005 | $0.00042 |
| Haiku 4.5 | $0.00002 | $0.00021 |
Grade A, and why
drin-feature-flag-workflow 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 6d 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
Feature Flag Workflow
Purpose
To decouple deployment from release, allowing for safer launches and real-world testing.
Patterns
- Release Toggles: Gradual rollout to % of users.
- Experiment Toggles: A/B testing variations.
- Ops Toggles: Kill-switches for heavy or buggy features.
- Permission Toggles: Enabling features for specific tiers or beta users.
Lifecycle
- Create: Define flag in code and manager (LaunchDarkly/GrowthBook).
- Implement: Wrapped code blocks with flag checks.
- Rollout: Increase % monitoring telemetry.
- Cleanup: Relentlessly remove flags once feature is permanent.
Rules
- Name flags by intent, not implementation.
- Don't leave flags in the code for > 3 months (Tech Debt).
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.
- 6d ago First seen · 27 lines · 23 tokens per session scan A b70b4a7a6eb0
drin-feature-flag-workflow is a skill published in the GitHub repository pedrol-cmd/brain-drin (11 stars, last pushed 5mo ago), licensed MIT. It adds 23 tokens to every session and 211 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 2026-09-03.
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