diff --git a/.gitignore b/.gitignore
index 7e7ecf1..a2647ba 100644
--- a/.gitignore
+++ b/.gitignore
@@ -217,3 +217,7 @@ docs/superpowers/
 
 # Local test config (contains user-specific paths to proprietary test assets)
 OpenNest.Tests/test-config.json
+
+# Vendor programming manuals: keep reference copies outside source control.
+CINCINNATI LASER PROGRAMMING MANUAL.pdf
+TF5200_programming_manual_en.pdf
diff --git a/AGENTS.md b/AGENTS.md
index f7519ec..eecbfa3 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -137,6 +137,8 @@ Always keep `README.md` and `AGENTS.md` up to date when making changes that affe
 
 **Do not commit** design specs, implementation plans, or other temporary planning documents (`docs/superpowers/` etc.) to the repository. These are working documents only — keep them local and untracked.
 
+Keep vendor programming manuals and full-text extracts outside source control unless redistribution permission has been established. Maintain project-written post behavior references instead: [Cincinnati CL](docs/cincinnati-post-output.md) and [Cincinnati CI Fiber](docs/cincinnati-ci-fiber-post-output.md). Cite the manual edition and relevant sections, distinguish controller rules from machine-specific macros, and document unconfirmed behavior without copying vendor text.
+
 ## Key Patterns
 
 - OpenNest.Core uses multiple namespaces: `OpenNest` (root domain), `OpenNest.CNC`, `OpenNest.Geometry`, `OpenNest.Converters`, `OpenNest.Math`, `OpenNest.Collections`.
diff --git a/docs/CINCINNATI LASER PROGRAMMING MANUAL.pdf b/docs/CINCINNATI LASER PROGRAMMING MANUAL.pdf
deleted file mode 100644
index 8dba37d..0000000
Binary files a/docs/CINCINNATI LASER PROGRAMMING MANUAL.pdf and /dev/null differ
diff --git a/docs/cincinnati-ci-fiber-post-output.md b/docs/cincinnati-ci-fiber-post-output.md
new file mode 100644
index 0000000..968fdbd
--- /dev/null
+++ b/docs/cincinnati-ci-fiber-post-output.md
@@ -0,0 +1,69 @@
+# Cincinnati CI Fiber Post Output Reference
+
+Project-written summary of `OpenNest.Posts.CincinnatiCIFiber`, not a vendor
+manual or a machine-operation guide. For the separate CL-series post, see
+[Cincinnati output](cincinnati-post-output.md).
+
+Controller reference used during development: Beckhoff *TF5200 | TwinCAT 3 CNC
+Programming manual*, version 1.33, May 19, 2026
+(`TF5200_programming_manual_en.pdf`). Obtain the applicable documentation from
+Beckhoff and Cincinnati. Vendor PDFs and full-text extracts stay outside source
+control; redistribution permission has not been established.
+
+## Output contract
+
+The current [writer](../Posts/OpenNest.Posts.CincinnatiCIFiber/CIFiberProgramWriter.cs)
+uses the Cincinnati machine-sample convention, not a generic TF5200 laser API:
+
+- Header: nest/configuration/material comments; `V.E.MATERIAL`, `V.E.THICKNESS`,
+  `V.E.X_SIZE`, `V.E.Y_SIZE`, and `V.E.UNIT`. Sheet weight is omitted by default.
+- Startup: `G90`, `L PROGRAMSTART.NC`, then `P3=V.E.R3`, `$GOTO NP3:`, and `N0:`.
+- Parts follow plate order. `V.E.R4` identifies the part within its sheet;
+  numbered contour labels and `V.E.R3` continue across sheets for restart lookup.
+- Each contour: `/L "L0"`, restart number, rapid to pierce, then interior
+  `/L "L2"` with `G41` or exterior `/L "L4"` with `G42`; linear lead-in,
+  `/L "L6"`, cutting moves, and `/L "ZHSOFF"`.
+- Tail: `/L "L0"`, `L PROGRAMEND.NC`, `M50`, `M30`, and `%`.
+- Motion endpoints are sheet-absolute XY. Arc `I`/`J` are offsets from the arc
+  start, matching the G162 convention; the post does not explicitly emit G162.
+- Hole subprogram geometry is inlined. Suppressed moves and, by default,
+  wholly scribe contours are omitted.
+- Files use UTF-8 without a BOM and CRLF lines. Default accuracy is three decimal
+  places: coordinates trim trailing zeros; dimensional header values retain them.
+
+## Configuration and boundaries
+
+See [CIFiberPostConfig](../Posts/OpenNest.Posts.CincinnatiCIFiber/CIFiberPostConfig.cs)
+for macro names, material mappings, unit codes, precision, and table limits.
+The post is named for the machine family; table size belongs in configuration.
+
+- Assign linear lead-ins before posting, including circular holes. The writer
+  rejects missing or arc-first lead-ins. Its conservative rule cites the G238
+  compensation-selection restriction in TF5200 §13.2.4.1; do not generalize it
+  to every controller compensation mode.
+- `/L` calls are skippable; `L PROGRAMSTART.NC` and `L PROGRAMEND.NC` are not.
+  Macro bodies, process settings, restart handling, and compensation cancellation
+  belong to the machine configuration. The post does not emit an explicit G40.
+- `InchUnitCode` defaults to `1`; `MetricUnitCode` defaults to `0` but remains
+  unconfirmed. Table limits compare directly with nest dimensions, without unit
+  conversion. Do not assume changing the unit code establishes metric support.
+- Multiple nonempty plates are written sequentially, but dimensional header
+  values come only from the first plate and the pallet-change tail occurs once.
+  This is not proof of a qualified multi-sheet machine cycle.
+- Validation can throw after output has started. Discard any output from a failed
+  post; it may be incomplete. Successful generation and tests do not establish
+  that a program is safe to run on a particular machine.
+
+## Verification
+
+[Output-contract tests](../OpenNest.Tests/CincinnatiCIFiber/CIFiberPostProcessorTests.cs)
+cover a square with a hole, coordinate transforms/formatting, lead-in rejection,
+table bounds, and suppression/scribe handling. Run:
+
+```sh
+dotnet test OpenNest.Tests/OpenNest.Tests.csproj --filter FullyQualifiedName~CincinnatiCIFiber
+```
+
+Keep this summary aligned with the implementation and tests. Cite the relevant
+manual section for controller rules and distinguish those rules from
+Cincinnati-specific macros and behavior observed in a machine sample.
diff --git a/docs/cincinnati-post-output.md b/docs/cincinnati-post-output.md
index f410952..0633e9f 100644
--- a/docs/cincinnati-post-output.md
+++ b/docs/cincinnati-post-output.md
@@ -2,8 +2,14 @@
 
 Reference for the G-code structure emitted by `OpenNest.Posts.Cincinnati`.
 Every code listed here maps to a section in the Cincinnati Laser Programming
-Manual (`docs/CINCINNATI LASER PROGRAMMING MANUAL.pdf`, EM-423 R-02/11).
-Section numbers in parentheses (e.g. `§1.52`) refer to the manual.
+Manual (EM-423 R-02/11). Section numbers in parentheses (e.g. `§1.52`)
+refer to that edition. Obtain the applicable manual from Cincinnati; vendor
+manuals are not bundled because redistribution permission has not been established.
+
+This is a project-written implementation reference, not a replacement for the
+machine's programming, operating, or safety documentation. Keep vendor PDFs and
+full-text extracts outside source control; do not re-add them without permission.
+For the separate CI Fiber post, see [CI Fiber output](cincinnati-ci-fiber-post-output.md).
 
 If you add a new emission in the post, either cite the manual section it maps
 to, or flag it here as a known custom extension. "Custom code" in this project