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 agentmods add skills/modimihir07/agentic-os/systematic-debugnpx skills add modimihir07/agentic-os --skill systematic-debuggit clone --depth 1 https://github.com/modimihir07/agentic-osWhat 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 | $0.00011 | $0.00248 |
| Opus 5 | $0.00005 | $0.00124 |
| Sonnet 5 | $0.00002 | $0.00050 |
| Haiku 4.5 | $0.00001 | $0.00025 |
Grade A, and why
systematic-debug 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 3d 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
Systematic Debugging
Description
Four-phase debugging methodology: reproduce, investigate, fix, verify. Prevents guesswork and ensures root cause is found before any fix is applied.
When to Use
- Encountering a bug or error
- System failure or crash
- Unexplained behavior
- Performance regression
Process
- Reproduce: Capture exact steps, environment, and error output
- Investigate: Trace root cause through logs, stack traces, and code analysis
- Fix: Apply minimal fix addressing root cause (not symptoms)
- Verify: Confirm fix resolves the issue and doesn't introduce regressions
- Update learnings.md with debugging insights
Safety
- If 3 fix attempts fail, trigger architectural review
- Never apply workaround without understanding root cause
Output
Debug report: symptoms, root cause, fix applied, verification results
Agent Assignment
- Primary: opencode
What ships with it
3 files 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.
- 3d ago First seen · 36 lines · 11 tokens per session scan A 31990e884a5a
systematic-debug is a skill published in the GitHub repository modimihir07/agentic-os (164 stars, last pushed 22d ago), licensed MIT. It adds 11 tokens to every session and 248 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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