chore: remove deprecated commands, PRAXIS_PROFILE, and dead scaffolding (#46)

The deprecation layer was stamped "removed in v0.8" but the CLI has been
at v0.x well past that (now v0.17.0), so the hidden commands and the
PRAXIS_PROFILE env var have outlived their migration window by ~10 minor
releases. Drop them for the next major.

Removed commands (each already has a live replacement):
  init, install-skill  -> login
  uninstall-skill      -> logout
  whoami               -> status
  use                  -> login --profile <name>

Also removed:
  - PRAXIS_PROFILE env var: dropped from the active-profile resolution
    chain entirely (not just un-warned), incl. the SourceEnv source and
    the per-invocation deprecation warning (warnDeprecatedEnvVars).
  - cmd/deprecated.go and the deprecate() wrapper + their tests.
  - install-skill/uninstall-skill helpers that were deprecated-only
    (installCatalogSkills, snapshotMCPManifest, uninstallSkill seam,
    skillName const, harnessNames).

Kept (verified still used by the live login path): installSkill,
installSkillBody, fetchCatalog, listInstalledSkill seams; fetchAuthMe;
list-skills and refresh-skills commands. skillInstallationLite moved from
the deleted init.go into login_setup.go where it's consumed.

Left in place by design: orphaned-skill/agent cleanup, forward-compat
Kind fields, and omitempty receipt migration — defensive compat code that
helps users crossing this major boundary, not deprecated surface.

Updated stale doc/comment references (README, CLAUDE.md, profiles, paths,
mcpmanifest, skillcatalog, exitcode) and the list-skills hint string, and
removed now-dead t.Setenv("PRAXIS_PROFILE", "") test resets.

make build / go vet / gofmt clean; go test -race ./... green.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: anujhydrabadi

CLAUDE.md

@@ -51,8 +51,6 @@ cmd/                  cobra command tree (only commands that DO something
   update.go           `praxis update` (self-update via GitHub Releases)
   completion.go       `praxis completion {bash|zsh|fish|powershell}`
   logout.go           `praxis logout` (deletes ~/.praxis/credentials)
-  use.go              `praxis use <profile>` (sets the GLOBAL active-profile
-                       pointer; local mode is `praxis login --local`)
   duty.go             `praxis duty *` (Agent Schedule runs/findings/reports)
 internal/             pure logic, unit-tested
   paths/              Praxis filesystem locations. Two roots: the HOME root
@@ -70,8 +68,9 @@ Makefile              build (with ldflags), install, test, lint, clean
 **Don't add stub commands.** A cobra command that prints "not yet
 implemented" is worse than no command — it lies to users and to
 `--help`. Skill sourcing and the server gateway are now live:
-`login`, `whoami`, `mcp`, `install-skill`, `uninstall-skill`,
-`list-skills`, and `refresh-skills` are all implemented. Skills are
+`login`, `logout`, `status`, `profiles`, `mcp`, `list-skills`, and
+`refresh-skills` are all implemented (skills install automatically as
+part of `login`/`refresh-skills`). Skills are
 fetched from the server, name-prefixed (`praxis-*`), and have the
 `render.ExecutionPreamble` inserted after their frontmatter so any
 in-process MCP reference (`run_cloud_cli(...)`) is rewritten to a
@@ -114,7 +113,7 @@ Invariants to preserve when touching this area:
   resolve the global profile (`credentials.ResolveActiveGlobal`), so being
   inside a project tree never redirects them.
 - **Active-profile resolution** (`credentials.resolveName`): `--profile`
-  flag → project pointer → global pointer → `PRAXIS_PROFILE` → `"default"`.
+  flag → project pointer → global pointer → `"default"`.
   `SourceProject` marks the project case; a project pointer to an unknown
   profile falls back to the global resolution.
 - Discovery is **home-subtree only** — matches the intended use case and

README.md

@@ -177,13 +177,6 @@ praxis duty <subcommand> [--agent <name|id>] [--json]
      report <run_id>               the report artifact a run produced
      findings <duty> [--status open|resolved|all] [--limit N]
 
-praxis use <profile> [--json]
-   Set the GLOBAL active profile (~/.praxis/config.json) without
-   re-authenticating — kubectl-style. The profile must already exist
-   (created by `praxis login --profile <name>`). To pin a profile to
-   one directory tree instead, use `praxis login --local` (see "Local
-   mode" below).
-
 praxis refresh-skills [--project] [--json]
    Re-fetch this profile's catalog and rewrite skill files + MCP
    snapshot, without re-authenticating. Use when the org has
@@ -309,7 +302,7 @@ Now each repo is permanently "logged in" as its own profile:
 ```text
 ~/work/acme-repo/      → profile acme,     skills in ./.claude/skills
 ~/work/bigcorp-repo/   → profile bigcorp,  skills in ./.claude/skills
-~/  (everywhere else)  → the global profile (set by login / `praxis use`)
+~/  (everywhere else)  → the global profile (set by `praxis login`)
 ```
 
 `praxis login --profile <name> --local`:
@@ -328,9 +321,8 @@ Active-profile resolution walks this chain (first match wins):
 ```text
 1. --profile flag on the command
 2. <cwd>/.praxis/config.json   ← project pointer (walks up to your home dir)
-3. ~/.praxis/config.json       ← global pointer (set by `praxis use`)
-4. PRAXIS_PROFILE env var
-5. "default"
+3. ~/.praxis/config.json       ← global pointer (set by `praxis login --profile`)
+4. "default"
 ```
 
 Local mode only activates when **you actually have the pinned profile**.
@@ -393,7 +385,7 @@ praxis logout --all
 ```text
 ~/.praxis/credentials      INI, one [section] per profile (chmod 0600)
                            — ALWAYS global; shared across every directory
-~/.praxis/config.json      global active-profile pointer (login / `praxis use`)
+~/.praxis/config.json      global active-profile pointer (set by `praxis login`)
 ~/.praxis/mcp-tools.json   manifest snapshot of gateway tools
 ~/.praxis/installed.json   receipt of skill files written across hosts
 

cmd/deprecated.go

@@ -46,7 +46,6 @@ func stubScheduleResolution(t *testing.T, name, id string) func() {
 func seedDutyProfile(t *testing.T) {
 	t.Helper()
 	t.Setenv("HOME", t.TempDir())
-	t.Setenv("PRAXIS_PROFILE", "")
 	if err := credentials.Put("default", credentials.Profile{
 		URL: "https://x.test", Username: "u@x.com", Token: "sk_test_T",
 	}); err != nil {