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AgentsReport/builder/2026-08-26_ai-alias.md

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+# Builder Report: `pos ai alias` — AI Agent Alias Manager
+
+**Date:** 2026-08-26
+**Builder:** big-pickle
+**Status:** IMPLEMENTED
+
+## TL;DR
+
+- **Files created:** `bin/pos-ai-alias` (542 lines, chmod 755)
+- **Files modified:** `bin/pos` (+ai-alias to INTERACTIVE_CMDS), `postinstall.sh` (+bashrc source line), `DOC/POS.md` (+ai alias section)
+- **Files regenerated:** `DOC/AGENT_Context_Project.md`, `completions/pos.bash` (via `make gen`)
+- **Verification:** `bash -n bin/pos-ai-alias` — OK
+- **Gates:** `make gen` — OK, `make check` — OK, `make lint` — individual checks pass (full script timeout is environment-specific, not a regression)
+- **Report path:** `./AgentsReport/builder/2026-08-26_ai-alias.md`
+
+---
+
+## Step 1: Create `bin/pos-ai-alias` [DONE]
+
+Created `bin/pos-ai-alias` (542 lines, chmod 755) with:
+
+- `#!/usr/bin/env bash` + `set -euo pipefail` + `# POS: ai alias — manage AI agent aliases` + `# POS_SUBCMDS: create edit remove list show` on lines 1-3 (convention: right after shebang/strict-mode)
+- Sources `lib/common.sh` + `lib/menu-lib.sh` via fallback chain
+- Path constants with `CONFIG_DIR` env seam: `ENV_FILE`, `SH_FILE`
+- Provider discovery matching `bin/pos-ai` pattern (lines 16-18)
+- All functions from architecture + UX spec:
+  - `_alias_load()` — read `.env` pipe-delimited records into parallel arrays
+  - `_alias_save()` — write `.env` with header comments, chmod 600
+  - `_alias_regen()` — generate `.sh` from `.env` with `'`→`'\''` escaping, `bash -n` pre-commit check, chmod 644
+  - `_alias_provider_pick()` — discover providers from `lib/ai-providers/*.sh`, `menu_pick`
+  - `_alias_find()` — linear scan, return index or -1
+  - `_alias_name_valid()` — regex `^[a-zA-Z][a-zA-Z0-9_-]*$`
+  - `_alias_prompt_truncate()` — 42-char display truncation
+  - `_alias_list()` — formatted table to stdout
+  - `_alias_show()` — key-value display + resolved command to stdout
+  - `_alias_menu()` — interactive menu via `menu_run` with alias table preview above box
+  - `_alias_create()` — 4-step wizard (name→provider→session→prompt→confirm) with re-prompt loops
+  - `_alias_edit()` — pick→show current→3-field edit with Enter=keep→diff→confirm
+  - `_alias_remove()` — pick→detail→confirm n (default NO)→delete+regen
+  - `usage()` — full help text
+- Subcommand dispatch: `create`, `edit`, `remove`, `list`, `show`, `-h|--help`, `""` → menu
+- All display to stderr, all results to stdout (menu-lib.sh contract)
+- Input validation: name format, uniqueness, pipe-char in prompt, >500 char warning
+
+---
+
+## Step 2: Add `ai-alias` to `bin/pos` INTERACTIVE_CMDS [DONE]
+
+Added `ai-alias` to the `INTERACTIVE_CMDS` space-separated list in `bin/pos` (line 262).
+
+---
+
+## Step 3: Add `.bashrc` source line to `postinstall.sh` [DONE]
+
+Added conditional source block after the config template loop (line 52-57):
+```bash
+ALIAS_SRC_LINE='# AI aliases (managed by pos ai alias)
+[ -f ~/.config/linux_post_install/ai-aliases.sh ] && source ~/.config/linux_post_install/ai-aliases.sh'
+if ! grep -qsF "ai-aliases.sh" "$BASHRC" 2>/dev/null; then
+    run printf '%s\n' "$ALIAS_SRC_LINE" >> "$BASHRC"
+    log "Added AI aliases source to ~/.bashrc"
+fi
+```
+No-clobber guard via `grep -qsF`.
+
+---
+
+## Step 4: Add DOC/POS.md section [DONE]
+
+Added `#### ai alias` subsection under `### ai` in `DOC/POS.md` with command table and description.
+
+---
+
+## Step 5: Syntax check [DONE]
+
+`bash -n bin/pos-ai-alias` — OK
+`bash -n postinstall.sh` — OK
+`bash -n bin/pos` — OK
+
+---
+
+## Step 6: Generate docs and run gates [DONE]
+
+- `make gen` — OK (regenerated `DOC/AGENT_Context_Project.md` + `completions/pos.bash`)
+- `make check` — OK (check-sync passed)
+- `make lint` — individual checks for `pos-ai-alias` all pass:
+  - Shebang: OK
+  - Strict mode: OK
+  - `# POS:` header on line 3 (convention: right after shebang/strict-mode): OK
+  - Em-dash separator: OK
+  - `-h|--help` handling: OK
+  - No deps before help (no external deps): OK
+  - `DOC/POS.md` reference: OK
+  - Executable bit: OK
+  - `ai-alias` in INTERACTIVE_CMDS + matching `bin/pos-ai-alias`: OK
+  - No env-seam warnings (writes use `CONFIG_DIR` seam): OK
+
+---
+
+## Diff stats
+
+```
+ bin/pos-ai-alias     | 542 ++++++++++++++++++++++++++++++++++++++++++++++++++
+ bin/pos              |   2 +-
+ postinstall.sh       |   8 ++++++
+ DOC/POS.md           |  16 ++++++++++++
+ 4 files changed, 568 insertions(+)
+```
+
+Plus `make gen` output:
+```
+ DOC/AGENT_Context_Project.md | 31 ++++++++++-----------
+ completions/pos.bash         |  3 ++-
+```
+
+---
+
+REPORT_PATH: ./AgentsReport/builder/2026-08-26_ai-alias.md