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 agentmods add commands/wbern/agent-instructions/gapgit clone --depth 1 https://github.com/wbern/agent-instructionsWhat 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 | $0.00010 | $0.00475 |
| Opus 5 | $0.00005 | $0.00237 |
| Sonnet 5 | $0.00002 | $0.00095 |
| Haiku 4.5 | $0.00001 | $0.00047 |
Grade A, and why
gap 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 2d 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 — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.
General Guidelines
Output Style
- Never explicitly mention TDD in code, comments, commits, PRs, or issues
- Write natural, descriptive code without meta-commentary about the development process
- The code should speak for itself - TDD is the process, not the product
Beads is available for task tracking. Use mcp__beads__* tools to manage issues (the user interacts via bd commands).
Plan File Restriction
NEVER create, read, or update plan.md files. Claude Code's internal planning files are disabled for this project. Use other methods to track implementation progress (e.g., comments, todo lists, or external tools).
Analyze the current conversation context and identify things that have not yet been addressed. Look for:
-
Incomplete implementations - Code that was started but not finished
-
Unused variables/results - Values that were captured but never used
-
Missing tests - Functionality without test coverage
-
Open issues - Beads issues that are still open or in progress
-
User requests - Things the user asked for that weren't fully completed
-
TODO comments - Any TODOs mentioned in conversation
-
Error handling gaps - Missing error cases or edge cases
-
Documentation gaps - Undocumented APIs or features
-
Consistency check - Look for inconsistent patterns, naming conventions, or structure across the codebase
Present findings as a prioritized list with:
- What the gap is
- Why it matters
- Suggested next action
If there are no gaps, confirm that everything discussed has been addressed.
User arguments:
Gap: $ARGUMENTS
End of user arguments
Testing Requirements
| Change | Required |
|---|---|
| Content (fragment/source) | Snapshot update |
| Feature flag | Conditional test (enabled + disabled), FLAG_OPTIONS, CLI mock |
| CLI option | cli.test.ts mock |
| Generation logic | Unit test |
Existing tests cover: fragment references, $ARGUMENTS, no nested fragments. Snapshots cover content. TypeScript covers structure. Don't duplicate.
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.
- 2d ago First seen · 57 lines · 10 tokens per session scan A 2d173705596c
gap is a command published in the GitHub repository wbern/agent-instructions (168 stars, last pushed 3mo ago), licensed MIT. It adds 10 tokens to every session and 475 once invoked, about $0.0001 per session on Opus 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 commands, from other repositories
checklist
Generate a custom checklist for the current feature based on user requirements.
clarify
Identify underspecified areas in the current feature spec by asking up to 5 highly targeted clarification questions and encoding answers back into the spec.
specify
Create or update the feature specification from a natural language feature description.
analyze
Perform a non-destructive cross-artifact consistency and quality analysis across spec.md, plan.md, and tasks.md after task generation.
converge
Assess the current codebase against the feature's spec, plan, and tasks, then append any remaining unbuilt work as new tasks to tasks.md so implement can complete it.
implement
Execute the implementation plan by processing and executing all tasks defined in tasks.md.