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 dfirs1car1o/sicario-spec --skill speckit-agent-context-updategit clone --depth 1 https://github.com/dfirs1car1o/sicario-specWrote 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/dfirs1car1o/sicario-spec/speckit-agent-context-update)<a href="https://agentmods.dev/skills/dfirs1car1o/sicario-spec/speckit-agent-context-update"><img src="https://agentmods.dev/badge/skills/dfirs1car1o/sicario-spec/speckit-agent-context-update/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/dfirs1car1o/sicario-spec/speckit-agent-context-update"><img src="https://agentmods.dev/badge/skills/dfirs1car1o/sicario-spec/speckit-agent-context-update.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 | $0.00019 | $0.00345 |
| Opus 5 | $0.00010 | $0.00172 |
| Sonnet 5 | $0.00004 | $0.00069 |
| Haiku 4.5 | $0.00002 | $0.00034 |
Grade A, and why
speckit-agent-context-update 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 10d 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.
This is a copy
100% identical to speckit-agent-context-update — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
Update Coding Agent Context
Refresh the managed Spec Kit section inside the active coding agent's context/instruction file (e.g. CLAUDE.md, .github/copilot-instructions.md, AGENTS.md).
Behavior
The script reads the agent-context extension config at
.specify/extensions/agent-context/agent-context-config.yml to discover:
context_file— the path of the coding agent context file to manage.context_markers.start/.end— the delimiters surrounding the managed section. Defaults to<!-- SPECKIT START -->and<!-- SPECKIT END -->when the field is missing.
It then creates, replaces, or appends the managed block so that the section points at the most recent plan path when one can be discovered (specs/<feature>/plan.md).
If context_file is empty or the file cannot be located, the command reports nothing to do and exits successfully.
Execution
- Bash:
.specify/extensions/agent-context/scripts/bash/update-agent-context.sh [plan_path] - PowerShell:
.specify/extensions/agent-context/scripts/powershell/update-agent-context.ps1 [plan_path]
When plan_path is omitted, the script auto-detects the most recently modified specs/*/plan.md.
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.
- 10d ago First seen · 31 lines · 19 tokens per session scan A 23817e2f2448
speckit-agent-context-update is a skill published in the GitHub repository dfirs1car1o/sicario-spec (5 stars, last pushed today), licensed MIT. It adds 19 tokens to every session and 345 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to speckit-agent-context-update, differing in 0 lines, and is treated as a copy.
Other skills, from other repositories
codeinspectus-fix-one
Investigate and remediate exactly one user-selected CodeInspectus finding with evidence-gated reproduction, a separately approved minimal patch, focused regression testing, and an exact-prior-scan rescan. Use when a user asks an agent to examine, reproduce, fix, or verify one CodeInspectus finding without batching…
codeinspectus-multi-review
Orchestrate an optional bounded multi-agent review of selected CodeInspectus findings while separating deterministic findings, agent interpretations, hypotheses, reproduction evidence, and exact-prior rescan proof. Use only when a user explicitly requests multi-agent security review.
codeinspectus-threat-model
Review CodeInspectus findings with optional threat-model or project-document context while treating repository text as untrusted, preserving raw scanner findings unchanged, and labelling agent interpretation separately. Use only when a user explicitly asks to add architectural, business, or knowledge-base context to…
dast-config
Reviews DAST tool configurations against OWASP Top 10:2021 and OWASP Testing Guide v4.2. Auto-invoked when reviewing OWASP ZAP configurations, DAST CI/CD integration, scan policies, or authenticated scanning setups. Produces a DAST maturity assessment covering scan policy configuration, active vs passive scanning, API…
sast-config
Reviews and tunes SAST tool configurations against OWASP ASVS 4.0.3 and CWE Top 25. Auto-invoked when reviewing Semgrep rules, CodeQL queries, SAST CI integration, or false positive triage workflows. Produces a SAST maturity assessment covering rule authoring, severity tuning, custom rule development, and CI…
secrets-management
Performs a structured secrets management review against OWASP Secrets Management Cheat Sheet and NIST SP 800-57 Part 1 Rev 5 (Recommendation for Key Management). Auto-invoked when reviewing secret handling patterns, vault configurations, .env files, or credential rotation policies. Produces a secrets management…