Datapack Builder
w95/awesome-claude-corporate-skills
Build professional financial services data packs from various sources including CIMs, offering memorandums, SEC filings, web search, or MCP servers.
Review amendments to SEC filings using Octagon MCP. An agent skill from OctagonAI/skills.
$ npx skills add OctagonAI/skills --skill sec-amendments-review -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install OctagonAI/skills sec-amendments-review --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/OctagonAI/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/sec-amendments-review .claude/skills/sec-amendments-review && 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 "sec-amendments-review" agent skill from https://github.com/OctagonAI/skills/tree/main/skills/sec-amendments-review into .claude/skills/sec-amendments-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sec-amendments-review", 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/OctagonAI/skills/tree/main/skills/sec-amendments-reviewType 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 OctagonAI/skills --skill sec-amendments-review -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install OctagonAI/skills sec-amendments-review --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/OctagonAI/skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/sec-amendments-review .agents/skills/sec-amendments-review && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "sec-amendments-review" agent skill from https://github.com/OctagonAI/skills/tree/main/skills/sec-amendments-review into .agents/skills/sec-amendments-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sec-amendments-review", 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 OctagonAI/skills --skill sec-amendments-review -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install OctagonAI/skills sec-amendments-review --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/OctagonAI/skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/sec-amendments-review .cursor/skills/sec-amendments-review && 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 "sec-amendments-review" agent skill from https://github.com/OctagonAI/skills/tree/main/skills/sec-amendments-review into .cursor/skills/sec-amendments-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sec-amendments-review", 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/OctagonAI/skills.git --path skills/sec-amendments-review--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 OctagonAI/skills --skill sec-amendments-review -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install OctagonAI/skills sec-amendments-review --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/OctagonAI/skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/sec-amendments-review .gemini/skills/sec-amendments-review && 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 "sec-amendments-review" agent skill from https://github.com/OctagonAI/skills/tree/main/skills/sec-amendments-review into .gemini/skills/sec-amendments-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sec-amendments-review", 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 OctagonAI/skills sec-amendments-reviewInstalls 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 OctagonAI/skills --skill sec-amendments-review -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/OctagonAI/skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/sec-amendments-review .github/skills/sec-amendments-review && 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 "sec-amendments-review" agent skill from https://github.com/OctagonAI/skills/tree/main/skills/sec-amendments-review into .github/skills/sec-amendments-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sec-amendments-review", 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 OctagonAI/skills --skill sec-amendments-review -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install OctagonAI/skills sec-amendments-review --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/OctagonAI/skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/sec-amendments-review .opencode/skills/sec-amendments-review && 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 "sec-amendments-review" agent skill from https://github.com/OctagonAI/skills/tree/main/skills/sec-amendments-review into .opencode/skills/sec-amendments-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sec-amendments-review", 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.
sec-amendments-reviewReview amendments to SEC filings using Octagon MCP. An agent skill from OctagonAI/skills.
Sec Amendments Review is an agent skill from OctagonAI/skills. Review amendments to SEC filings using Octagon MCP. Use when tracking material changes, corrections, restatements, and updates to previously filed documents including 10-K/A, 10-Q/A, 8-K/A, S-1/A, and Form 144/A filings.
Its SKILL.md is about 2.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including reference files (for example `README.md`, `marketplace.json` and `references/interpreting-results.md`).
It sits in Business, Finance & HR, covering MCP servers. It works with Model Context Protocol and SEC EDGAR. The repository describes itself as: A collection of Claude skills for agentic financial research by Octagon. The licence is MIT.
4 steps, taken from the step headings in SKILL.md.
Read from SKILL.md and the folder at commit 51e938c. 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.
Sec Amendments Review loads about 2.1k tokens when it runs, and up to ~4.8k if it reads all its reference files. Until then it costs about 61 tokens; SKILL.md has 743 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 OctagonAI/skills at commit 51e938c, republished under its MIT licence (© OctagonAI). 743 words, ~2,107 tokens.
.claude/skills/sec-amendments-review/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.Review amendments to SEC filings and identify material changes or corrections for public companies using the Octagon MCP server.
Ensure Octagon MCP is configured in your AI agent (Cursor, Claude Desktop, Windsurf, etc.). See references/mcp-setup.md for installation instructions.
Determine the following before querying:
Use the octagon-agent tool with a natural language prompt:
Review recent amendments to SEC filings for <TICKER> and identify material changes or corrections.MCP Call Format:
{
"server": "octagon-mcp",
"toolName": "octagon-agent",
"arguments": {
"prompt": "Review recent amendments to SEC filings for AMZN and identify material changes or corrections."
}
}The agent returns structured amendment analysis including:
Recent Amendments:
Related Filings:
Data Sources: octagon-sec-agent, octagon-web-search-agent
See references/interpreting-results.md for guidance on:
General Amendment Review:
Review recent amendments to SEC filings for AMZN and identify material changes or corrections.10-K Amendments:
Has TSLA filed any 10-K/A amendments in the past year and what changes were made?Restatement Search:
Identify any financial restatements or 10-Q/A amendments filed by META in 2025.S-1 Amendment Tracking:
Track the S-1/A amendments filed by Reddit during their IPO process.8-K Corrections:
Find any 8-K/A amendments for NVDA that corrected prior disclosures.Proxy Amendments:
Review DEF 14A amendments for AAPL and identify changes to compensation disclosures.| Form | Original | Amendment |
|---|---|---|
| Annual Report | 10-K | 10-K/A |
| Quarterly Report | 10-Q | 10-Q/A |
| Current Report | 8-K | 8-K/A |
| Transition Report | 10-KT | 10-KT/A |
| Form | Original | Amendment |
|---|---|---|
| IPO Registration | S-1 | S-1/A |
| Shelf Registration | S-3 | S-3/A |
| M&A Registration | S-4 | S-4/A |
| Employee Plans | S-8 | S-8/A |
| Form | Original | Amendment |
|---|---|---|
| Definitive Proxy | DEF 14A | DEFA14A |
| Preliminary Proxy | PRE 14A | PREA14A |
| Contested Proxy | DEFC14A | N/A |
| Form | Description |
|---|---|
| Form 144/A | Amended proposed securities sale |
| Schedule 13D/A | Amended beneficial ownership (>5%) |
| Schedule 13G/A | Amended passive investor disclosure |
| Form 3/A, 4/A, 5/A | Amended insider ownership |
| Reason | Severity |
|---|---|
| Accounting Error | High |
| Revenue Recognition | High |
| Expense Timing | Medium |
| Classification Error | Medium |
| Rounding/Typo | Low |
| Reason | Typical Content |
|---|---|
| Additional Information | Expanded details |
| Clarification | Improved explanation |
| Correction | Fixed errors |
| Subsequent Events | New developments |
| Exhibit Updates | New or corrected exhibits |
| Reason | Purpose |
|---|---|
| SEC Comments | Response to staff review |
| Pricing Update | Final terms |
| Financial Update | More recent financials |
| Material Change | Business developments |
| Risk Factor Update | New risks identified |
| Type | Indicators |
|---|---|
| Restatement | Changed reported numbers |
| Control Weakness | Internal control issues |
| Regulatory | Government action response |
| Legal | Litigation developments |
| M&A | Deal term changes |
| Type | Indicators |
|---|---|
| Clarification | Expanded disclosure |
| Reclassification | Changed categories |
| Exhibit | New supporting documents |
| Officer | Management updates |
| Type | Indicators |
|---|---|
| Typographical | Spelling, formatting |
| Administrative | Signatures, dates |
| Cross-reference | Citation fixes |
| Exhibit | Technical corrections |
| Amendment | Typical Content |
|---|---|
| S-1/A #1 | SEC comment responses |
| S-1/A #2 | Additional responses, updates |
| S-1/A #3+ | Further refinements |
| Final S-1/A | Pricing, final terms |
| Section | What Changes |
|---|---|
| Risk Factors | New risks, updated language |
| Financials | More recent quarters |
| Valuation | Price range updates |
| Use of Proceeds | Refined allocation |
| Shares Offered | Final share count |
| Reason | Frequency |
|---|---|
| Restatement | Uncommon, serious |
| Control Disclosure | Moderate |
| Exhibit Filing | Common |
| Signature | Common |
| XBRL Correction | Common |
| Change | How to Assess |
|---|---|
| Revenue | Compare restated vs. original |
| Earnings | Impact on EPS, net income |
| Balance Sheet | Asset/liability changes |
| Cash Flow | Operating cash adjustments |
| Ratios | Covenant, metric impacts |
| Purpose | Content |
|---|---|
| Correction | Fix errors in original |
| Additional Info | Complete disclosure |
| Exhibit | Add omitted documents |
| Financial Statements | Required within 71 days |
| Timing | Interpretation |
|---|---|
| Same day | Quick correction |
| Within week | Discovered error |
| Within month | Deliberate update |
| Extended | Potential concern |
Track over time:
Compare to industry:
Compare versions: Use SEC compare tools to see exact changes.
Read cover page: Amendment reason often stated upfront.
Check exhibits: Often key documents added/corrected.
Note timing: Gaps between filings reveal issues.
Track patterns: Recurring amendments signal problems.
Cross-reference 8-Ks: Material amendments often disclosed.
© OctagonAI, MIT. 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 4 other files (references) in skills/sec-amendments-review of OctagonAI/skills.
Open the folder on GitHubat commit 51e938c
Sec Amendments Review 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 |
|---|---|---|---|---|---|---|
| Sec Amendments Review this skillOctagonAI/skills | 127 | — | ~2.1k | Automated safety check: Pass | MIT | |
| Datapack Builderw95/awesome-claude-corporate-skills | 244 | 1 repos | ~6k | Automated safety check: Pass | MIT | |
| Tradingview MCPatilaahmettaner/tradingview-mcp | 5k | — | ~1.3k | Automated safety check: Pass | MIT | |
| Okx Cex Marketdex-original/okx-agent-trade-kit | 110 | 1 repos | ~2.7k | Automated safety check: Pass | MIT | |
| Polymarket Tennislivetennisapi/livetennisapi-mcp | 152 | — | ~3k | Automated safety check: Pass | MIT | |
| Kimi DatasourceMoonshotAI/kimi-code | 7.8k | — | ~1.8k | Automated safety check: Pass | MIT |
w95/awesome-claude-corporate-skills
Build professional financial services data packs from various sources including CIMs, offering memorandums, SEC filings, web search, or MCP servers.
atilaahmettaner/tradingview-mcp
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livetennisapi/livetennisapi-mcp
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OctagonAI/skills
Retrieve analyst financial estimates including Revenue and EPS projections with low/high ranges and analyst coverage.
OctagonAI/skills
Retrieve detailed balance sheet statement data including Total Assets, Current Assets, Non-Current Assets, Liabilities, Equity, and Net Debt for public companies.
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Retrieve year-over-year growth in balance sheet items including Total Assets, Total Liabilities, Shareholders Equity, Cash, and Inventories.
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OctagonAI/skills
Retrieve year-over-year growth in cash flow metrics including Operating Cash Flow, Free Cash Flow, and Net Cash Flow.
OctagonAI/skills
Retrieve real-time or historical cash flow statement data including Net Income, Operating Cash Flow, Investing Cash Flow, Financing Cash Flow, Free Cash Flow, and Cash Position for public companies.
Works with
Categories
Review amendments to SEC filings using Octagon MCP. An agent skill from OctagonAI/skills. Sec Amendments Review is an agent skill from OctagonAI/skills. Review amendments to SEC filings using Octagon MCP.
Sec Amendments Review fits situations like: tracking material changes; updates to previously filed documents including 10-K/A; form 144/A filings.
Run `npx skills add OctagonAI/skills --skill sec-amendments-review -a claude-code`. Or copy the skill folder (skills/sec-amendments-review in OctagonAI/skills) into .claude/skills/sec-amendments-review in your project. Claude Code loads it when a task matches its description.
Run `npx skills add OctagonAI/skills --skill sec-amendments-review -a codex`. Or copy the skill folder (skills/sec-amendments-review in OctagonAI/skills) into .agents/skills/sec-amendments-review 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 OctagonAI/skills --skill sec-amendments-review -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sec-amendments-review, .gemini/skills/sec-amendments-review, .github/skills/sec-amendments-review and .opencode/skills/sec-amendments-review in your project.
SKILL.md names no scripts, command-line tools or credentials: Sec Amendments Review 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.
Sec Amendments Review is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 2.1k tokens (SKILL.md is roughly 8.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2.6k tokens, read only when the agent opens those files.
Skills that share tags, products or a category with Sec Amendments Review: Datapack Builder (w95/awesome-claude-corporate-skills, 244 stars), Tradingview MCP (atilaahmettaner/tradingview-mcp, 5k stars), Okx Cex Market (dex-original/okx-agent-trade-kit, 110 stars) and Polymarket Tennis (livetennisapi/livetennisapi-mcp, 152 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
OctagonAI (a GitHub organization) maintains it in OctagonAI/skills, which has 127 GitHub stars. The repository holds 53 skills in this directory. The repository was last updated on June 5, 2026.
Source: OctagonAI/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.