* feat(cli): wrap directory tree example in code block in skill header

* fix: replace hardcoded URLs and hostnames with placeholders in fixtures and skill references

* feat(cli): add skills list/show commands and restructure ai-context

Introduce `checkly skills list` and `checkly skills show` commands for
progressive disclosure of skill documentation. Restructure ai-context
source files: flatten checkly/ nesting, rename references with action
prefixes, separate command vs public skill output paths.

* refactor(cli): consolidate skills list/show into single skills command

Merge `skills list` and `skills show` into one command:
- `checkly skills` shows overview with examples, actions, and references
- `checkly skills <action>` shows action content
- `checkly skills <action> <reference>` shows reference content

Split uptime-monitors into individual reference files (tcp, url, dns,
icmp, heartbeat) and add e2e tests.

* refactor(cli): clean up ai-context formatting and remove linkText

- Use heading-per-command style in SKILL.md and configure.md
- Remove reference links section from configure.md
- Remove unused linkText from REFERENCES and ACTIONS
- Update stale skills list/show references in skill.md

* chore: update generated SKILL.md with new formatting

* fix(cli): fix typos and improve setup.md agent instructions

Fix typos (seperate, __checks--, missing "you"), correct list
numbering, and clarify ambiguous instructions for AI agents. Add
agentic auth flow with env var option alongside interactive login.

* docs: add CLI update guardrail to SKILL.md

Agents consuming this skill file now get guidance to update the
Checkly CLI when `npx checkly skills` is unavailable.

* docs: add progressive disclosure section and capitalize construct names

Explain token-efficient skill structure for agents and use consistent
capitalized naming for Checkly constructs in the skill description.

* fix(cli): use h4 headings for sub-command references in SKILL.md

Reference commands nested under an action (e.g. configure api-checks)
should use #### instead of ### to reflect the hierarchy.

* fix(cli): fix comment wording, README reference, and PhoneCallAlertChannel name

- Update comment to match current CLI command structure
- Fix README to reference `npx checkly skills` instead of `skills show`
- Correct PhoneAlertChannel to PhoneCallAlertChannel in context.ts

* fix: update skills/checkly/README.md to reference correct command

* test(cli): add skills command to help output snapshot

* docs: replace ts-node with jiti in TypeScript setup instructions

* refactor(cli): rename 'setup' action to 'initialize' in skills command