fix: inaccurate skill description and missing prerequisites in security analysis

[dhl123]

Current Behavior

• The security requirement analysis section in SKILL.md describes the workflow as a way to create an OPA policy. It isn't. Steps A–D produce guidance only and write no Rego.
• Prerequisites are missing

Expected behavior

Change the descirption

• Change the description to guidance only, make the description precise.

Prerequisites (run before Step A in Skill.md or the first step's md file, in this order):

1. smith --flag get_current_agent — confirms the active <TARGET_AGENT_PATH> and resolved <GUIDANCE_FILE>. Use its output for those paths; do not read .env.
2. smith --flag get_mcp_parameter — regenerates <TARGET_AGENT_PATH>/smith/tool_definitions.json. Run it even if the file already exists, so the extracted tool shapes match the server actually running. Steps C and D verify every cited field against it.

[iamsreec]

1. The existing description already separates Steps A–D from the optional policy-creation flow through the two explicit human gates. I updated just the title to make that boundary even more explicit and avoid any ambiguity that Steps A–D themselves generate or write an OPA policy unless policy creation is explicitly agreed to.
2. Only change is title of the sub-skill to security-grounded guidance analysis
3. The prerequisites are already present in previous PR Link Please confirm.

[araujof]

@iamsreec the issue gets automatically closed when the referenced PR merges (this is when an issue "closes")