specs/tools: the tri CLI and the MCP servers as first-class .t27 specs (layer 5)

[gHashTag]

Layer 5 -- the tri CLI and the MCP servers as first-class .t27 specs

Closes #3547. Stacked on #3546 (feat/specs-agents); retarget to master once #3546 merges.

What

• specs/tools/tri/<command>.t27 x52 (module tool_tri_<command>), one per variant of the clap Commands enum in cli/tri/src/main.rs; specs/tools/mcp/<server>.t27 x10 (module tool_mcp_<server>), one per MCP server of gHashTag/t27 (5) and gHashTag/trinity (5). Schema and witness rule in specs/tools/README.md.
• Witness: source-parse 52/52 -- cargo was not run; the enum and its /// docs were read at commit 3cb7a4352492. help-output (list diffed against tri --help) is 0/52 until someone runs it. Variants without a doc quote the source they borrow from in ABOUT_SOURCE.
• MCP: 235 tools with input-schema keys from the server code / manifests; 5 servers EXTERNAL = true (published packages, tool list not in the repo) and say so in TOOLS_NOTE. tri-mcp is not registered in .mcp.json (CONFIG = ""); tri-ssot's manifest names a module the tree lacks -- recorded, not resolved.
• Two CLIs are two lists: trinity has no tri binary at its pinned commit, so its tools are its MCP servers only (REPO = "gHashTag/trinity").
• Agent bindings both ways, evidence-gated: tri/gen (C, T), tri/test (T, V), tri/verdict (V), tri/experience (E), tri/cell (W) -- specs/agents/{c,e,t,v,w}.t27 gain TOOLS; 22 letters carry TOOLS = [] + TOOLS_NOTE; 57/62 tools carry AGENTS = [] + AGENTS_NOTE naming the sources checked.
• specs/i18n/agents-ru.t27 SCOPE -> [4]str (+ specs/tools); specs/OWNERS.md row tools/ -> T-Queen; docs/now/2026-09-09-the-tri-cli-and-mcp-servers-as-t27-specs.md.

Measured (site side, gHashTag/trinity PR): 62/62 typecheck ok under the vendored wasm 4d9c0447b5ca2887..., nothing discarded; ru 62/62.

Checks run here: python3 tools/check_devhome_paths.py (no FAIL new; the FAIL fixed lines are the sparse checkout), PR_BASE_SHA=$(git rev-parse origin/master) GITHUB_BASE_REF=master python3 tools/check_now_entry_shape.py (OK, 2 entries), Cyrillic/ASCII scan of specs/tools/**, specs/agents/*, docs/now.

Boundaries: English-only, ASCII-only files; no absolute home paths (the checkout is T27_ROOT / git rev-parse --show-toplevel); the three pre-existing files at the top of specs/tools/ are untouched corpus specs; no --bless; gate-topology and untrusted-input are the known pre-existing reds. Not merged -- review requested.

phi^2 + 1/phi^2 = 3 | TRINITY

[github-actions]

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