Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/Samurai-goose/SPECTER-The-Illusive-Security-Protocolnpx agentmods add skills/samurai-goose/specter-the-illusive-security-protocol/specter-deltaWrote 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/samurai-goose/specter-the-illusive-security-protocol/specter-delta)<a href="https://agentmods.dev/skills/samurai-goose/specter-the-illusive-security-protocol/specter-delta"><img src="https://agentmods.dev/badge/skills/samurai-goose/specter-the-illusive-security-protocol/specter-delta/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/samurai-goose/specter-the-illusive-security-protocol/specter-delta"><img src="https://agentmods.dev/badge/skills/samurai-goose/specter-the-illusive-security-protocol/specter-delta.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00048 | $0.01305 |
| Opus 5 | $0.00024 | $0.00652 |
| Sonnet 5 | $0.00010 | $0.00261 |
| Haiku 4.5 | $0.00005 | $0.00130 |
Grade A, and why
specter-delta 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 11d 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 — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SPECTER Delta — Fast-Path Post-Task Audit
Purpose
Run a focused, time-boxed security review of only the files modified in the current task. Designed to execute quickly. Output is written to the persistent findings store for accumulation across sessions.
Trigger
.specter/.audit-pendingfile exists (written byscripts/post_task_audit.pyhook)- User explicitly requests "delta audit" or "quick security check"
- Before any task is marked as completed (enforced by
specter.instructions.md)
Workflow
1. Read scope
Read .specter/.audit-pending to get the changed file list.
If the file does not exist, run git diff --name-only HEAD directly.
If that returns nothing, run git diff --name-only HEAD~1 HEAD.
2. Classify files
For each changed file, determine which checks apply:
| File Pattern | Checks to Apply |
|---|---|
electron/ipc-handlers.* |
CWE-20: missing validation on new handlers; privilege boundary checks |
electron/preload.* |
CWE-20: unvalidated IPC surface additions; contextBridge exposure |
electron/ai-service.* |
Prompt injection, info disclosure, model output handling |
electron/api-server.* |
Auth bypass, rate limiting, CORS, injection |
components/**/*.tsx |
XSS, unvalidated event handlers, dangerouslySetInnerHTML usage |
lib/**/*.ts |
Business logic, injection patterns, auth checks |
**/auth*, **/login* |
AuthN/AuthZ weaknesses, session handling |
**/db*, **/query* |
SQL/NoSQL injection, parameter binding |
**/config*, **/.env* |
Secret exposure, insecure defaults |
**/upload*, **/file* |
Path traversal, unrestricted upload |
**/crypto*, **/hash* |
Weak algorithms, hardcoded keys |
Only run checks relevant to each file's classification. Skip unrelated checks.
3. Run targeted checks
For each classified file:
- Read the file content
- Apply only the checks from the classification table above
- Look for:
- Missing input validation at trust boundaries
- Direct use of user-controlled data in sensitive operations
- Missing authorization checks before privileged operations
- Secrets or credentials in code or config
- Calls to dangerous functions (
eval,exec,dangerouslySetInnerHTML, etc.) - Any regression from a previous finding in
findings/index.json
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.
- 11d ago First seen · 157 lines · 48 tokens per session scan A e49f6a452fdd
specter-delta is a skill published in the GitHub repository Samurai-goose/SPECTER-The-Illusive-Security-Protocol (2 stars, last pushed 2mo ago), licensed MIT. It adds 48 tokens to every session and 1,305 once invoked, about $0.0002 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 2026-08-31.
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