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 MageByte-Zero/spec-superflow --skill bug-investigatorgit clone --depth 1 https://github.com/MageByte-Zero/spec-superflowWrote 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/magebyte-zero/spec-superflow/bug-investigator)<a href="https://agentmods.dev/skills/magebyte-zero/spec-superflow/bug-investigator"><img src="https://agentmods.dev/badge/skills/magebyte-zero/spec-superflow/bug-investigator/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/magebyte-zero/spec-superflow/bug-investigator"><img src="https://agentmods.dev/badge/skills/magebyte-zero/spec-superflow/bug-investigator.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 | $0.00037 | $0.01396 |
| Opus 5.5 | $0.00015 | $0.00558 |
| Sonnet 5.5 | $0.00007 | $0.00279 |
| Haiku 4.5 | $0.00004 | $0.00140 |
Grade A, and why
bug-investigator 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 25d 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 — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Bug Investigator
Bundled runtime
Before executing a CLI line below, replace its leading SSF with node "<plugin-root>/scripts/spec-superflow.mjs"; <plugin-root> is the absolute directory two levels above this file. Never run SSF literally or call an ssf from PATH.
Core principle: Find root cause before attempting fixes. Symptom fixes are failure.
New direct/planned changes
Investigate in executing without a phase transition or a separate debug ledger: reproduce, trace the root cause, make one focused repair and verify. Keep useful failure evidence in the existing progress entry. Three failures for the same unresolved issue warrant a decision; unrelated findings do not accumulate a shared budget. No task book or subagent is required. The detailed legacy protocol below is for an existing debugging state or an investigation that needs it.
The Iron Law
No fixes without root cause investigation first. If you haven't completed Phase 1, you cannot propose fixes.
When to Use
Use for ANY technical issue: test failures, bugs, unexpected behavior, performance problems, build failures, integration issues. Especially when under time pressure, "one quick fix" seems obvious, you've already tried multiple fixes, or you don't fully understand the issue.
Don't skip because issue "seems simple" or you're "in a hurry" — systematic debugging is faster than thrashing.
The Four Phases
Complete each phase before proceeding.
Phase 1: Root Cause Investigation
- Read error messages carefully: stack traces, line numbers, file paths, error codes — they often contain the exact solution
- Reproduce consistently: exact steps, every time? If not reproducible → gather more data, don't guess
- Check recent changes: git diff, recent commits, new dependencies, config changes, environment differences
- Multi-component systems: add diagnostic instrumentation at each component boundary. Log what enters and exits each layer. Run once to gather evidence, then analyze which component fails
- Trace data flow: backward tracing — where does the bad value originate? Keep tracing up until you find the source. Fix at source, not symptom
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.
- 25d ago Changed · +4 lines 509e77e10f52
- 27d ago Changed · -29 lines b0648d1228c0
- 1mo ago Changed f2c8e206bacb
- 1mo ago First seen · 135 lines · 37 tokens per session scan A ea8d42c88c6f
bug-investigator is a skill published in the GitHub repository MageByte-Zero/spec-superflow (867 stars, last pushed 18d ago), licensed MIT. It adds 37 tokens to every session and 1,396 once invoked, about $0.0001 per session on Opus 5.5. 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.
Other skills, from other repositories
systematic-debugging
A step-by-step method for finding the underlying cause of technical problems before changing code. It covers reading errors, reproducing failures, checking recent changes, and tracing data across system components.
diagnosing-superpowers
A diagnostic workflow for investigating problems in Superpowers agent sessions using saved conversation records. It requires evidence linked to exact file paths and line numbers, then organizes findings into a report.
backprop
Bug → spec protocol. When a bug is found or a test fails, trace the cause, decide whether a new §V invariant would catch recurrence, append to §B. This is the one non-obvious thing SDD does that plan-then-execute doesn't. Triggers on test failure, bug report, post-mortem, or explicit user ask.
check
Read-only drift detector. Diffs SPEC.md against current code and reports violations grouped by severity. Writes nothing — suggests remedies via the spec or build skills but never invokes them. Triggers when the user asks to check drift, audit the spec, verify invariants, or ask whether code still matches the spec.…
speq-audit
Audit a speq project's health — spec-library structure, feature/decision-log/plan validation, ADR noise, mission-to-spec sync, unrecorded plans, and gitignore hygiene — then guide fixes. Use when the user asks to audit, health-check, doctor, lint, or sanity-check the specs or repo, or after cloning or inheriting a…
critical-review
4-phase adversarial review protocol: pre-flight analysis, adversarial execution check, self-correction loop, and [VALIDATION] report.