Sample Strands Agent with Amazon Bedrock AgentCore is an end-to-end reference architecture for building multi-agent chatbots on AWS. Teams use it to explore agent orchestration, tool execution, memory, browser automation, and agent-to-agent collaboration with Strands Agents and Bedrock AgentCore.
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 aws-samples/sample-strands-agent-with-agentcore --skill excel-spreadsheetsgit clone --depth 1 https://github.com/aws-samples/sample-strands-agent-with-agentcoreWrote 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/aws-samples/sample-strands-agent-with-agentcore/excel-spreadsheets)<a href="https://agentmods.dev/skills/aws-samples/sample-strands-agent-with-agentcore/excel-spreadsheets"><img src="https://agentmods.dev/badge/skills/aws-samples/sample-strands-agent-with-agentcore/excel-spreadsheets/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/aws-samples/sample-strands-agent-with-agentcore/excel-spreadsheets"><img src="https://agentmods.dev/badge/skills/aws-samples/sample-strands-agent-with-agentcore/excel-spreadsheets.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 | $0.00014 | $0.01838 |
| Opus 5.5 | $0.00006 | $0.00735 |
| Sonnet 5.5 | $0.00003 | $0.00368 |
| Haiku 4.5 | $0.00001 | $0.00184 |
Grade A, and why
excel-spreadsheets 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 1mo 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 — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Excel Spreadsheets
When to Use
| Tool | Use When |
|---|---|
create_excel_spreadsheet |
User asks to create/generate a NEW spreadsheet |
modify_excel_spreadsheet |
User asks to edit/update an EXISTING spreadsheet |
list_my_excel_spreadsheets |
User asks what spreadsheets are available |
read_excel_spreadsheet |
User wants to download or read spreadsheet contents |
preview_excel_sheets |
Check actual sheet appearance when editing |
Workflow
- Before modifying: call
preview_excel_sheetsto check current layout. - After creation/modification: call
preview_excel_sheetsto verify. - Run tools sequentially (never parallel) to prevent file race conditions.
Professional Formatting
- Font: Arial for all cells unless an existing template specifies otherwise.
- Negative numbers: parentheses format
(1,234)— not minus-1,234. - Currency:
$#,##0format. Specify units in headers (e.g., "Revenue ($mm)"). - Percentages:
0.0%(one decimal place). - Years: format as text (
"2024"not"2,024"). - Zeros: display as
"-"using a custom number format.
# Example: professional number formatting
from openpyxl.styles import numbers
ws['B2'].number_format = '$#,##0' # Currency
ws['C2'].number_format = '0.0%' # Percentage
ws['D2'].number_format = '#,##0;(#,##0)' # Negative in parentheses
ws['E2'].number_format = '@' # Year as text
ws['F2'].number_format = '#,##0;(#,##0);"-"' # Zeros as dash
Financial Model Color Coding
When building financial models, apply these conventions:
| Color | Hex | Usage |
|---|---|---|
| Blue text | 0000FF |
Hardcoded inputs and assumptions |
| Black text | 000000 |
All formulas and calculations |
| Green text | 008000 |
Links pulling from other worksheets |
| Yellow background | FFFF00 |
Key assumptions needing attention |
from openpyxl.styles import Font, PatternFill
ws['B2'].font = Font(name='Arial', color='0000FF') # Blue: input
ws['B3'].font = Font(name='Arial', color='000000') # Black: formula
ws['B4'].font = Font(name='Arial', color='008000') # Green: cross-sheet link
ws['B5'].fill = PatternFill('solid', fgColor='FFFF00') # Yellow bg: key assumption
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.
- 1mo ago First seen · 179 lines · 14 tokens per session scan A 2ae812b30f0c
excel-spreadsheets is a skill published in the GitHub repository aws-samples/sample-strands-agent-with-agentcore (196 stars, last pushed today), licensed MIT. It adds 14 tokens to every session and 1,838 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.
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