Plan
codewhale-hq/Codewhale
Turn a sufficiently understood task into an ordered implementation plan with dependencies and verification.
Synthesize the common stuck points across failed decomposition plans.
$ npx skills add frenzymath/Danus --skill identify-key-failures -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install frenzymath/Danus identify-key-failures --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/frenzymath/Danus.git skills-src && mkdir -p .claude/skills && cp -r skills-src/agents/skills/worker/identify-key-failures .claude/skills/identify-key-failures && 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 "identify-key-failures" agent skill from https://github.com/frenzymath/Danus/tree/codex/agents/skills/worker/identify-key-failures into .claude/skills/identify-key-failures/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "identify-key-failures", 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/frenzymath/Danus/tree/codex/agents/skills/worker/identify-key-failuresType 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 frenzymath/Danus --skill identify-key-failures -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install frenzymath/Danus identify-key-failures --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/frenzymath/Danus.git skills-src && mkdir -p .agents/skills && cp -r skills-src/agents/skills/worker/identify-key-failures .agents/skills/identify-key-failures && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "identify-key-failures" agent skill from https://github.com/frenzymath/Danus/tree/codex/agents/skills/worker/identify-key-failures into .agents/skills/identify-key-failures/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "identify-key-failures", 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 frenzymath/Danus --skill identify-key-failures -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install frenzymath/Danus identify-key-failures --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/frenzymath/Danus.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/agents/skills/worker/identify-key-failures .cursor/skills/identify-key-failures && 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 "identify-key-failures" agent skill from https://github.com/frenzymath/Danus/tree/codex/agents/skills/worker/identify-key-failures into .cursor/skills/identify-key-failures/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "identify-key-failures", 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/frenzymath/Danus.git --path agents/skills/worker/identify-key-failures--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 frenzymath/Danus --skill identify-key-failures -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install frenzymath/Danus identify-key-failures --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/frenzymath/Danus.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/agents/skills/worker/identify-key-failures .gemini/skills/identify-key-failures && 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 "identify-key-failures" agent skill from https://github.com/frenzymath/Danus/tree/codex/agents/skills/worker/identify-key-failures into .gemini/skills/identify-key-failures/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "identify-key-failures", 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 frenzymath/Danus identify-key-failuresInstalls 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 frenzymath/Danus --skill identify-key-failures -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/frenzymath/Danus.git skills-src && mkdir -p .github/skills && cp -r skills-src/agents/skills/worker/identify-key-failures .github/skills/identify-key-failures && 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 "identify-key-failures" agent skill from https://github.com/frenzymath/Danus/tree/codex/agents/skills/worker/identify-key-failures into .github/skills/identify-key-failures/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "identify-key-failures", 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 frenzymath/Danus --skill identify-key-failures -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install frenzymath/Danus identify-key-failures --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/frenzymath/Danus.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/agents/skills/worker/identify-key-failures .opencode/skills/identify-key-failures && 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 "identify-key-failures" agent skill from https://github.com/frenzymath/Danus/tree/codex/agents/skills/worker/identify-key-failures into .opencode/skills/identify-key-failures/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "identify-key-failures", 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.
identify-key-failuresSynthesize the common stuck points across failed decomposition plans.
Identify Key Failures is an agent skill from frenzymath/Danus. Synthesize the common stuck points across failed decomposition plans. Use when the current batch of decomposition plans has failed — whether they failed already at direct proving or only after further attempts.
Its SKILL.md is about 590 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `agents/openai.yaml`).
The repository describes itself as: Orchestrating Mathematical Reasoning Agents with Fact-Graph Memory. The licence is Apache-2.0.
7 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit 6d92e8d. 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 json).
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.
Identify Key Failures loads about 586 tokens when it runs. Until then it costs about 58 tokens; SKILL.md has 248 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 frenzymath/Danus at commit 6d92e8d, republished under its Apache-2.0 licence (© frenzymath). 248 words, ~586 tokens.
.claude/skills/identify-key-failures/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.Use this skill to turn many failed attempts into reusable guidance for the next planning round.
Read:
failed_pathscounterexamples and toy_examplesdead_end (below): the main agent reasons or launches exploratory subagents, then delivers a fresh direction as master_guidance.failed_paths so later planning skills can use it.$propose-subgoal-decomposition-plans.Publish the failure synthesis to global memory with gm_add (kind dead_end):
claim = the common stuck points, evidence = the per-plan failures, so siblings
skip these paths. Carry these fields:
{
"record_type": "key_failures_summary",
"failed_plan_ids": ["..."],
"plan_failures": [
{
"plan_id": "...",
"stuck_points": ["..."]
}
],
"common_failures": ["..."],
"implications_for_next_plans": ["..."]
}Also note in your local memory (events) that a new planning round is needed.
gm_add (publish the dead_end synthesis)gm_search (gather the failed plans and stuck points across the swarm)If the reports are too weak to identify meaningful common failures, note in local memory (events) event_type="key_failures_inconclusive" and state what information is still missing.
© frenzymath, 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
SKILL.md and 1 other file in agents/skills/worker/identify-key-failures of frenzymath/Danus.
Open the folder on GitHubat commit 6d92e8d
Identify Key Failures 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 |
|---|---|---|---|---|---|---|
| Identify Key Failures this skillfrenzymath/Danus | 476 | — | ~586 | Automated safety check: Pass | Apache-2.0 | |
| Plancodewhale-hq/Codewhale | 41k | — | ~213 | Automated safety check: Pass | MIT | |
| Decomposition Planning Roadmaptech-leads-club/agent-skills | 7k | — | ~4.3k | Automated safety check: Pass | Custom licence | |
| Planningn8n-io/n8n | 207k | — | ~2.5k | Automated safety check: Pass | Custom licence | |
| Planasgeirtj/system_prompts_leaks | 69k | — | ~5.1k | Automated safety check: Pass | CC0-1.0 | |
| CEO Plan Reviewgarrytan/gstack | 136k | — | ~20k | Automated safety check: Notes | MIT |
codewhale-hq/Codewhale
Turn a sufficiently understood task into an ordered implementation plan with dependencies and verification.
tech-leads-club/agent-skills
Creates step-by-step decomposition plans and migration roadmaps for breaking apart monolithic applications.
n8n-io/n8n
ONLY for coordinated multi-artifact work: multiple workflows with dependencies, shared data-table schema/migration across tasks, or the user explicitly asked to review a plan first.
asgeirtj/system_prompts_leaks
On an explicit planning request, always call readskill for this skill before answering.
garrytan/gstack
Reviews a plan from a founder's point of view, questioning premises and scope in one of four modes that run from expansion to reduction.
penpot/penpot
Plan review flow — evaluate an implementation plan before it is executed, delegating the review to a subagent that follows the plan-review-criteria skill.
frenzymath/Danus
Validate externally referenced theorems by querying arXiv theorem search first and Codex's built-in web search second.
frenzymath/Danus
Construct candidate counterexamples to test a proposed conjecture, lemma, or intermediate claim by keeping the assumptions true while making the claimed conclusion fail.
frenzymath/Danus
Generate and analyze simpler examples that satisfy both the assumptions and the conclusion of a theorem statement or subgoal.
frenzymath/Danus
Screen a decomposition plan by first trying to prove all of its subgoals directly, then identifying the key stuck points if the plan does not fully go through.
frenzymath/Danus
Derive immediate mathematical consequences from a theorem statement or subgoal.
frenzymath/Danus
Propose multiple subgoal decomposition plans for the current theorem using the information already gathered.
Synthesize the common stuck points across failed decomposition plans. Identify Key Failures is an agent skill from frenzymath/Danus. Synthesize the common stuck points across failed decomposition plans.
Identify Key Failures fits situations like: the current batch of decomposition plans has failed — whether they failed already at direct proving; only after further attempts.
Run `npx skills add frenzymath/Danus --skill identify-key-failures -a claude-code`. Or copy the skill folder (agents/skills/worker/identify-key-failures in frenzymath/Danus) into .claude/skills/identify-key-failures in your project. Claude Code loads it when a task matches its description.
Run `npx skills add frenzymath/Danus --skill identify-key-failures -a codex`. Or copy the skill folder (agents/skills/worker/identify-key-failures in frenzymath/Danus) into .agents/skills/identify-key-failures 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 frenzymath/Danus --skill identify-key-failures -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/identify-key-failures, .gemini/skills/identify-key-failures, .github/skills/identify-key-failures and .opencode/skills/identify-key-failures in your project.
SKILL.md names no scripts, command-line tools or credentials: Identify Key Failures 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.
Identify Key Failures 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 586 tokens (SKILL.md is roughly 2.3k 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 Identify Key Failures: Plan (codewhale-hq/Codewhale, 41k stars), Decomposition Planning Roadmap (tech-leads-club/agent-skills, 7k stars), Planning (n8n-io/n8n, 207k stars) and Plan (asgeirtj/system_prompts_leaks, 69k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
frenzymath (a GitHub organization) maintains it in frenzymath/Danus, which has 476 GitHub stars. The repository holds 16 skills in this directory. The repository was last updated on August 27, 2026.
Source: frenzymath/Danus on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.