Code Design Rationale Investigator
cursor/plugins
Digs into why code is shaped the way it is by checking git history, pull requests and connected tools in parallel, then reporting a cited read on the tradeoffs.
Coordinates parallel investigation threads to simultaneously explore multiple hypotheses or root causes across different system areas.
$ npx skills add rohitg00/skillkit --skill parallel-investigation -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install rohitg00/skillkit parallel-investigation --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/rohitg00/skillkit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/core/src/methodology/packs/collaboration/parallel-investigation .claude/skills/parallel-investigation && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "parallel-investigation" agent skill from https://github.com/rohitg00/skillkit/tree/main/packages/core/src/methodology/packs/collaboration/parallel-investigation into .claude/skills/parallel-investigation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "parallel-investigation", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/rohitg00/skillkit/tree/main/packages/core/src/methodology/packs/collaboration/parallel-investigationType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add rohitg00/skillkit --skill parallel-investigation -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install rohitg00/skillkit parallel-investigation --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rohitg00/skillkit.git skills-src && mkdir -p .agents/skills && cp -r skills-src/packages/core/src/methodology/packs/collaboration/parallel-investigation .agents/skills/parallel-investigation && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "parallel-investigation" agent skill from https://github.com/rohitg00/skillkit/tree/main/packages/core/src/methodology/packs/collaboration/parallel-investigation into .agents/skills/parallel-investigation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "parallel-investigation", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add rohitg00/skillkit --skill parallel-investigation -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install rohitg00/skillkit parallel-investigation --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rohitg00/skillkit.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/packages/core/src/methodology/packs/collaboration/parallel-investigation .cursor/skills/parallel-investigation && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "parallel-investigation" agent skill from https://github.com/rohitg00/skillkit/tree/main/packages/core/src/methodology/packs/collaboration/parallel-investigation into .cursor/skills/parallel-investigation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "parallel-investigation", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/rohitg00/skillkit.git --path packages/core/src/methodology/packs/collaboration/parallel-investigation--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add rohitg00/skillkit --skill parallel-investigation -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install rohitg00/skillkit parallel-investigation --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rohitg00/skillkit.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/packages/core/src/methodology/packs/collaboration/parallel-investigation .gemini/skills/parallel-investigation && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "parallel-investigation" agent skill from https://github.com/rohitg00/skillkit/tree/main/packages/core/src/methodology/packs/collaboration/parallel-investigation into .gemini/skills/parallel-investigation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "parallel-investigation", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install rohitg00/skillkit parallel-investigationInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add rohitg00/skillkit --skill parallel-investigation -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/rohitg00/skillkit.git skills-src && mkdir -p .github/skills && cp -r skills-src/packages/core/src/methodology/packs/collaboration/parallel-investigation .github/skills/parallel-investigation && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "parallel-investigation" agent skill from https://github.com/rohitg00/skillkit/tree/main/packages/core/src/methodology/packs/collaboration/parallel-investigation into .github/skills/parallel-investigation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "parallel-investigation", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add rohitg00/skillkit --skill parallel-investigation -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install rohitg00/skillkit parallel-investigation --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rohitg00/skillkit.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/packages/core/src/methodology/packs/collaboration/parallel-investigation .opencode/skills/parallel-investigation && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "parallel-investigation" agent skill from https://github.com/rohitg00/skillkit/tree/main/packages/core/src/methodology/packs/collaboration/parallel-investigation into .opencode/skills/parallel-investigation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "parallel-investigation", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
parallel-investigationCoordinates parallel investigation threads to simultaneously explore multiple hypotheses or root causes across different system areas.
Parallel Investigation is an agent skill from rohitg00/skillkit. Coordinates parallel investigation threads to simultaneously explore multiple hypotheses or root causes across different system areas. Use when debugging production incidents, slow API performance, multi-system integration failures, or complex bugs where the root cause is unclear and multiple plausible theories exist; when serial troubleshooting is too slow; or when multiple investigators can divide root-cause analysis work. Provides structured phases for problem decomposition, thread assignment, sync points with…
Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Development, covering Root cause analysis. The repository describes itself as: Supercharge AI coding agents with portable skills. Install, translate & share skills across Claude Code, Cursor, Codex, Copilot & 40 more. The licence is Apache-2.0.
5 steps, taken from the step headings in SKILL.md.
Read from SKILL.md and the folder at commit d2e5c34. It shows what the files ask for, not the result of running them.
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).
From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Parallel Investigation loads about 1.4k tokens when it runs. Until then it costs about 151 tokens; SKILL.md has 338 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
The full file from rohitg00/skillkit at commit d2e5c34, republished under its Apache-2.0 licence (© rohitg00). 338 words, ~1,449 tokens.
.claude/skills/parallel-investigation/SKILL.md (or your agent's skills folder).Coordinate parallel investigation threads to explore multiple hypotheses simultaneously. Most effective for production incidents, performance regressions, or integration failures where the root cause is unclear.
When uncertain, explore multiple paths in parallel. Converge when evidence points to an answer.
Parallel investigation reduces time-to-solution by eliminating serial bottlenecks.
Break the problem into independent investigation threads:
Problem: API responses are slow
Investigation Threads:
├── Thread A: Database performance
│ └── Check slow queries, indexes, connection pool
├── Thread B: Application code
│ └── Profile endpoint handlers, check for N+1
├── Thread C: Infrastructure
│ └── Check CPU, memory, network latency
└── Thread D: External services
└── Check third-party API response timesEach thread should be independent (no blocking dependencies), focused (clear scope), and time-boxed.
Assign threads with clear ownership:
## Thread A: Database Performance
**Investigator:** [Name/Agent A]
**Duration:** 30 minutes
**Scope:**
- Query execution times
- Index utilization
- Connection pool metrics
**Report Format:** Summary + evidenceEach thread follows this pattern:
Thread Log Template:
## Thread: [Name]
**Start:** [Time]
### Findings
- [Timestamp] [Finding]
### Evidence
- [Log/Metric/Screenshot]
### Preliminary Conclusion
[What this thread suggests about the problem]Regular convergence to share findings:
Sync Point Agenda:
1. Each thread report (2 min each)
2. Discussion & correlation (5 min)
3. Decision: Continue, Pivot, or Converge (3 min)Sync Point Decisions:
When a thread identifies the likely cause:
Hub and Spoke: One coordinator assigns threads, tracks progress, calls sync points, and makes convergence decisions. Best when one person has the most context.
Peer Network: Equal investigators post findings to a shared channel and self-organize convergence when a pattern emerges. Best when investigators have similar expertise.
[Thread A] [Status] Starting query analysis
[Thread B] [Finding] No N+1 patterns in user endpoint
[Thread A] [Finding] Slow query: SELECT * FROM orders WHERE...
[Thread C] [Dead End] CPU and memory within normal
[Thread A] [Hot Lead] Missing index on orders.user_id## Thread A Summary
**Status:** Hot Lead
**Key Finding:** Missing index on orders.user_id
**Evidence:** Query taking 3.2s, explain shows full table scan
**Recommendation:** Likely root cause — suggest converge| Thread Status | Action |
|---|---|
| All exploring | Continue parallel |
| One hot lead | Validate lead, others support |
| Multiple leads | Prioritize by evidence strength |
| All dead ends | Reframe problem, new threads |
| Confirmed cause | Converge, begin fix |
A typical two-hour investigation:
0:00 Problem decomposition & thread assignment
0:15 Parallel investigation begins
0:45 Sync point #1 → Continue/Pivot/Converge decision
1:30 Sync point #2 (if continuing)
1:35 Final convergence & documentationAdjust sync point cadence based on incident severity — every 20 minutes for critical outages, every 45 minutes for lower-urgency investigations.
# Investigation: [Problem]
## Summary
[Brief description and resolution]
## Threads Explored
### Thread A: [Area]
- Investigator: [Name]
- Findings: [Summary]
- Outcome: [Lead / Dead End / Root Cause]
## Root Cause
[Detailed explanation of what was found]
## Evidence
- [Evidence 1]
- [Evidence 2]
## Resolution
[What was done to fix]
## Lessons Learned
- [Learning 1]© rohitg00, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Just SKILL.md in packages/core/src/methodology/packs/collaboration/parallel-investigation of rohitg00/skillkit.
Open the folder on GitHubat commit d2e5c34
Parallel Investigation next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Parallel Investigation this skillrohitg00/skillkit | 1.5k | — | ~1.4k | Automated safety check: Pass | Apache-2.0 | |
| Code Design Rationale Investigatorcursor/plugins | 10k | 9 repos | ~2.6k | Automated safety check: Pass | None | |
| OpenLogi macOS Permissions TriageAprilNEA/OpenLogi | 23k | — | ~2.5k | Automated safety check: Notes | Apache-2.0 | |
| Bug Finder for daisyUIsaadeghi/daisyui | 43k | — | ~2.3k | Automated safety check: Pass | MIT | |
| Root Cause Debugginggarrytan/gstack | 136k | — | ~1.4k | Automated safety check: Pass | MIT | |
| Review PRapache/shardingsphere | 21k | — | ~6.4k | Automated safety check: Pass | Apache-2.0 |
cursor/plugins
Digs into why code is shaped the way it is by checking git history, pull requests and connected tools in parallel, then reporting a cited read on the tradeoffs.
AprilNEA/OpenLogi
Decides whether an OpenLogi device problem on macOS is a privacy-permission (TCC) problem, using agent log lines, and says which identity needs which grant.
saadeghi/daisyui
Investigates suspected bugs in the daisyUI monorepo through read-only analysis, then writes a decision-ready fix plan in tmp/bugs without changing any product code.
garrytan/gstack
Investigates bugs, errors and stack traces in phases and requires a root-cause hypothesis to be confirmed before any fix is written.
apache/shardingsphere
Review Apache ShardingSphere or user-authorized downstream pull requests and PR discussions from public or authorized repository evidence.
tirth8205/code-review-graph
Traces a bug through a code knowledge graph, following callers, callees and execution flow before opening source files, within a small token budget.
rohitg00/skillkit
Guides the creation of technical design documents before writing code, producing architecture diagrams, data models, API interface definitions, implementation plans, and multi-option trade-off…
rohitg00/skillkit
Discovers, searches, and installs skills from multiple AI agent skill marketplaces (400K+ skills) using the SkillKit CLI.
rohitg00/skillkit
Manages work transitions between team members or agents by creating structured handoff documents, summarizing project status, documenting key decisions, blockers, and open questions, and generating…
rohitg00/skillkit
Applies the scientific method to debugging by helping users form specific, testable hypotheses, design targeted experiments, and systematically confirm or reject theories to find root causes.
rohitg00/skillkit
Guides the red-green-refactor TDD workflow: write a failing test first, implement the minimum code to make it pass, then refactor while keeping tests green.
rohitg00/skillkit
Performs systematic root cause analysis to identify the true source of bugs, errors, and unexpected behavior through structured investigation phases — not just treating symptoms.
Categories
Coordinates parallel investigation threads to simultaneously explore multiple hypotheses or root causes across different system areas. Parallel Investigation is an agent skill from rohitg00/skillkit. Coordinates parallel investigation threads to simultaneously explore multiple hypotheses or root causes across different system areas.
Parallel Investigation fits situations like: debugging production incidents; slow API performance; multi-system integration failures; complex bugs where the root cause is unclear and multiple plausible theories exist.
Run `npx skills add rohitg00/skillkit --skill parallel-investigation -a claude-code`. Or copy the skill folder (packages/core/src/methodology/packs/collaboration/parallel-investigation in rohitg00/skillkit) into .claude/skills/parallel-investigation in your project. Claude Code loads it when a task matches its description.
Run `npx skills add rohitg00/skillkit --skill parallel-investigation -a codex`. Or copy the skill folder (packages/core/src/methodology/packs/collaboration/parallel-investigation in rohitg00/skillkit) into .agents/skills/parallel-investigation in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add rohitg00/skillkit --skill parallel-investigation -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/parallel-investigation, .gemini/skills/parallel-investigation, .github/skills/parallel-investigation and .opencode/skills/parallel-investigation in your project.
SKILL.md names no scripts, command-line tools or credentials: Parallel Investigation is instructions for the agent only.
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
Parallel Investigation is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 1.4k tokens (SKILL.md is roughly 5.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Parallel Investigation: Code Design Rationale Investigator (cursor/plugins, 10k stars), OpenLogi macOS Permissions Triage (AprilNEA/OpenLogi, 23k stars), Bug Finder for daisyUI (saadeghi/daisyui, 43k stars) and Root Cause Debugging (garrytan/gstack, 136k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
rohitg00 (a GitHub user) maintains it in rohitg00/skillkit, which has 1,546 GitHub stars. The repository holds 14 skills in this directory. The repository was last updated on June 2, 2026.
Source: rohitg00/skillkit on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.